Check a MIDI keyboard against your desk and stand

Read key floor, body width and DIN together

These six linked answers hold direct DIN required while moving the physical key floor and bare-body cap together. They show exactly when the VI25, VI49 and VI61 enter a real combined shortlist: DIN alone does not erase the different key counts, and body width is not a clearance guarantee.

The discontinued Roland PC-70 has 49 full-size velocity-sensitive keys and a 33-1/4-inch (33.25-inch) body. The A-49 and A-500S are examples of earlier 49-key configurations inside a 33-inch chassis cap. The PC-70’s 33-1/4-inch body misses the 33-inch cap, even with earlier=yes and a 49-key floor. See the 33-inch screen.

At the next selectable 33.25-inch body cap, the 49-key PC-70 enters the earlier-inclusive match set. Compare the 33.25-inch screen. Its manual lists MIDI OUT and a 9 V adaptor but no USB port, and the textual specification does not identify the MIDI connector pin format; leave USB-C and DIN-required tasks to configurations that document those connections. Body width is not cable, hand or stand clearance.

With only earlier=yes, a 49-key minimum and the 33.25-inch cap selected, the PC-70 is one of 22 matching configurations. Requiring USB-C instead excludes it; the five USB-C matches are a different task, including the documented KeyLab 49 mk3. See the same width and key floor with USB-C required.

Requiring five-pin DIN MIDI Out also excludes the PC-70 because its manual does not specify that connector format; 16 configurations meet the otherwise identical 49-key/33.25-inch brief, including the documented A-500S. Compare with DIN required.

Pressure-sensitive pads are a separate requirement from key velocity and aftertouch. Adding that requirement excludes the PC-70, whose panel has no pad bank; nine models remain in this screen, including the A-500PRO. Compare with pressure-sensitive pads required.

When all three constraints—USB-C, DIN output and pressure-sensitive pads—are required with the same 49-key and 33.25-inch limits, four configurations remain and PC-70 is excluded. One documented candidate is the KeyLab 49 mk3; verify the exact cable, host and software arrangement independently. See that complete combination.

An 88-key DIN brief crosses the M-Audio Keystation 88 body boundary at 54.25 inches

Alesis Q88 MKII has 88 keys and direct DIN, but its chassis width is unpublished. It is excluded from all of these numeric-width answers rather than treated as oversized or fitted by its image. See the same 88-key/DIN brief at 54.25 inches.

With an 88-key minimum and direct five-pin DIN required, Keystation 88 MK3's product-page width of 54.24 inches first passes at the next available quarter-inch cap, 54.25; it misses 54 inches. The separate Hammer 88 at 55.9 inches and Hammer 88 Pro at 56 inches remain outside until the valid 56-inch step. At a 56-inch cap, both original Hammer 88 and Hammer 88 Pro now clear the 88-key/DIN body screen; their exact weighted action and setup differences still need checking. A 54.25-inch pass is a body screen, not room for cables or a stand. Check 88 keys and DIN at 54 inches · recheck at 54.25 inches · compare at 56 inches. Read the Keystation 88 MK3, Hammer 88 and Hammer 88 Pro assessments for the separate action, setup and dimensions; compare the KeyLab Essential 88 when a smaller direct-DIN body is needed.

With an 88-key minimum and direct five-pin DIN, the 53.2677-inch Native Instruments Kontrol S88 MK3 fits the 54-inch cap. At 54 inches it joins the KeyLab Essential 88 and earlier Launchkey 88 MK3; the 54.24-inch Keystation 88 still misses. The S88 also remains within the 54.25-inch cap, while the 55.9-inch Hammer 88 and 56-inch Hammer 88 Pro do not enter until the 56-inch setting. At 56 inches with an 88-key minimum and direct DIN, S88, Keystation 88, Hammer 88 and Hammer 88 Pro all clear the body screen. Compare 54 inches, 54.25 and 56 inches with the same key/DIN requirements. These are bare-body limits, not cable-clearance guarantees.

Adding pressure-sensitive pads changes the brief independently of width and DIN. Keystation 88 and original Hammer 88 do not document a separate pad bank; the Pro's sixteen pads are velocity-sensitive, but continuous pressure is not established. Its channel aftertouch is a keybed feature, not proof of pad-pressure response. Check the same key, width and DIN limits with pressure-sensitive pads required; the Pro review keeps those controls distinct, and the pressure-sensitive KeyLab Essential 88 is a documented alternative.

The width rule screens documented bare-body dimensions only; original microKEY-25 is already below the 16-inch minimum, while earlier-enabled taktile-25, microKEY-37, taktile-49 and microKEY-61 first pass at 21, 22.25, 29.75 and 33.5 inches. Their exact U.S. KORG specifications are respectively 15.55, 20.91, 22.24, 29.53 and 33.46 inches; the older-generation flag and matching key floor are separate conditions. This is chassis width, not cable, hand or support clearance. Compare the 20.75-inch 25-key cap with 21 inches; for the 37-key microKEY, compare 22 inches and 22.25 inches; for taktile-49, 29.5 and 29.75 inches; and for microKEY-61, 33.25 and 33.5 inches. A model may still require adapter power, specific MIDI routing or a compatible current host.

KORG Keystage body boundaries with key range and DIN held in the same finder brief

At a 49-key minimum, 32-inch body cap and DIN requirement, Keystage-49 at 32.05 inches misses. The KeyLab 49 remains inside the same bare-body screen. Check the exact 49-key/32-inch/DIN answers.

At the next valid 32.25-inch cap, Keystage-49 fits the 49-key/DIN brief; 32 inches is too narrow. KORG lists DIN OUT, but its manual says to power the board separately when controlling an external tone generator; DIN is not audio. Read the Keystage-49 review and compare the same answers at 32.25 inches.

With 61 keys and DIN required, Keystage-61 at 38.54 inches misses the 38.5-inch cap. The Oxygen Pro 61 is one documented 61-key DIN option within that body limit. Check the exact 61-key/38.5-inch/DIN answers.

At the next valid 38.75-inch cap, Keystage-61 joins the 61-key/DIN results. It has a different 38.54-inch body from Keystage-49, and the width match still does not provide cable or hand clearance; separate power and an audio-producing instrument remain necessary for hardware playing. Read the Keystage-61 review and recheck the same answers at 38.75 inches.

With earlier=yes and a 25-key floor, the 10.94-inch nanoKEY Studio and 12.80-inch Black nanoKEY2 fit both these caps. Their host routes differ, and nanoKEY2 has no documented Bluetooth. The 15.55-inch microKEY2-25 is another separate USB Type-B model. These are bare-chassis screens, not setup clearance. Check 19.25 inches · compare 19.5 inches.

At a 49-key minimum, the 31.75-inch result is now 13 models, including microKEY2-49; the 32-inch result is 15 with that model already inside. Check 31.75 inches · compare 32 inches.

With earlier=yes and 61 keys, the 38.25-inch cap returns 11 models including microKEY2-61; at 38.5 inches the result is 13, with the same KORG body already inside. Check 38.25 inches · compare 38.5 inches.

Earlier Oxygen MK IV width boundaries with key minimum held constant

The three MK IV manuals give longest listed dimensions of 19.3, 32 and 38.5 inches for the 25-, 49- and 61-key bodies. Their tables label dimension axes “Length x Width x Height,” which conflicts with the illustrated keyboard orientation. These screens use the longest listed number as the long-edge body width; confirm the exact unit before a tight installation. They do not include leads, hand space, pedal reach or stand clearance. Each pair below keeps earlier=yes and the stated minimum-key answer fixed.

With earlier=yes, a 25-key minimum and a 19.25-inch body cap return 27 assessed models, including the 10.94-inch nanoKEY Studio, 12.80-inch nanoKEY2, 11.10-inch-open nanoKEY Fold and 16.46-inch Keystation Mini 32 MK3; Oxygen 25 MK IV at its interpreted 19.3-inch long edge is just outside. The 18.15-inch Launchkey 25 MK4 is another narrow assessed match. Check that exact 19.25-inch, earlier, 25-key finder result.

At the same earlier and 25-key minimum, a 19.5-inch cap returns 31 models and still includes the 10.94-inch nanoKEY Studio and 12.80-inch nanoKEY2, which were already inside at 19.25. The cap admits Oxygen 25 MK IV alongside the separately identified Oxygen 25 (MKV), Oxygen Pro 25, the 11.10-inch-open nanoKEY Fold and the 16.46-inch Keystation Mini 32 MK3. Read the 25 MK IV assessment and Mini 32 assessment, then recheck the same answers at 19.5 inches.

With earlier=yes, a 49-key minimum and a 31.75-inch cap return 13 assessed models; Oxygen 49 MK IV at its interpreted 32-inch long edge is outside. The Oxygen Pro 49 is an included, separate current/reference sibling with a 31.5-inch body. Check that exact 31.75-inch, earlier, 49-key result.

At the same earlier and 49-key minimum, a 32-inch cap returns 15 models and admits Oxygen 49 MK IV as well as Oxygen 49 (MKV); Oxygen Pro 49, with a separate 31.5-inch body, already fits below this step. Read the 49 MK IV assessment and compare the exact same answers at 32 inches.

With earlier=yes, a 61-key minimum and a 38.25-inch cap return 11 assessed models; Oxygen 61 MK IV at its interpreted 38.5-inch long edge remains outside. The Oxygen Pro 61 is an included, separate current/reference sibling at 38 inches. Check that exact 38.25-inch, earlier, 61-key result.

At the same earlier and 61-key minimum, a 38.5-inch cap returns 13 models and admits Oxygen 61 MK IV alongside Oxygen 61 (MKV); the 38-inch Oxygen Pro 61 already clears the lower step. Read the 61 MK IV assessment and recheck the exact same answers at 38.5 inches.

Native Instruments S-series bodies create additional exact-width examples in these earlier=yes key-floor interactions. With a 49-key minimum, the 31.5827-inch S49 MK3 fits a 31.75-inch cap alongside Oxygen Pro 49. At a 32-inch cap, S49 remains in while 38-inch S61 is outside. With a 61-key minimum, S61 at 38.0866 inches fits at 38.25, while S88 is too wide; at 38.5 inches, A61 remains withheld because its width is unknown. Read the S49 and S61 assessments. Compare earlier=yes / 49 keys / 31.75 inches with the same answers at 32 inches, then earlier=yes / 61 keys / 38.25 inches with the same answers at 38.5 inches.

With earlier=yes, a 25-key minimum and a 19.25-inch cap return 27 models; original microKEY-25 at 15.55 inches is already inside, while the taktile-25 remains too wide. Check that exact result.

At the same earlier and 25-key floor, a 19.5-inch cap returns 31 models; original microKEY-25 remains inside and taktile-25 remains outside. Compare the same key/generation answers at 19.5 inches.

At a 49-key minimum, the 31.75-inch result is 13 models and includes the 29.53-inch taktile-49; the 32-inch result is 15 with that model already inside. Check 31.75 inches · compare 32 inches.

At a 49-key minimum, the 32-inch result is 15 models and retains the 29.53-inch taktile-49 already inside at 31.75 inches. Check the exact same answers at 32 inches.

With earlier=yes and 61 keys, the 38.25-inch cap returns 11 models including original microKEY-61 at 33.46 inches; at 38.5 inches the result is 13. Check 38.25 inches · compare 38.5 inches.

With earlier=yes and 61 keys, the 38.5-inch cap returns 13 models including the 33.46-inch original microKEY-61, already inside at 38.25 inches. Check the same answers at 38.5 inches.

Earlier Impulse width boundaries with the playing and connection needs held constant

At 20.5 inches, MPK25's documented 18.78-inch body and the 19.25-inch MPK225 both clear the earlier-enabled 25-key DIN/pad screen alongside MPK Mini Plus II, MiniLab 3, MiniLab 37, Launchkey 25 MK4 and MPK Mini IV; Impulse 25 misses. Compare the semi-weighted MPK25 with the full-size-key MPK225 and 25-key MPK Mini IV; their key formats and control surfaces are not interchangeable.

At 20.75 inches, MPK25 and MPK225 remain among the seven narrower-width 25-key DIN-and-pressure-pad matches, then Impulse 25 enters as an eighth; Impulse 49 and 61 remain too wide. The Impulse body is 525 mm converted to 20.67 inches, with only 0.08 inch nominal margin. Read the MPK25 and MPK225 assessments alongside the Impulse 25; body width is not plug or hand clearance, and Akai does not identify the USB device connector as USB-C.

At a 34-inch cap, the earlier 49-key DIN-and-pressure-pad brief returns nine configurations: KeyLab 49, KeyLab Essential 49, 49SL, FLkey 49 MK1/MK2, Launchkey 49 MK4, MPK249, MPK49 and the 33-1/16-inch A-500PRO; 34.02-inch Impulse 49 misses. The A-500PRO is a distinct A-PRO design with channel-aftertouch keys, eight pressure-responsive pads, nine knobs and nine sliders. MPK49 differs from MPK249: its manual documents 12 pressure-sensitive pads, eight knobs and eight faders. The MPK49, MPK249, 49SL MkIII and FLkey 49 MK1 show other contrasting pad/fader, sequencer/CV and DAW layouts.

At 34.25 inches, the same 49-key DIN-and-pressure-pad brief returns ten configurations, including the A-500PRO, MPK49 and MPK249, and adds Impulse 49; its US product page prints a conflicting 33.3-inch equivalent for the 864 mm body, so this comparison uses 34.02 inches from metric conversion. A-500PRO measures 33-1/16 inches (33.0625 in) and first clears the valid 33.25-inch step; it is not counted as a current seller offer. Compare A-500PRO with Impulse 49, the KeyLab 49, 49SL MkIII and Launchkey 49 MK4; Impulse 49 crosses at 34.02 inches, while the Roland width is its published body dimension only.

At 40 inches, the earlier 61-key DIN-and-pressure-pad brief returns seven configurations: Essential 61, 61SL, FLkey 61 MK1/MK2, Launchkey 61 MK4, MPK261 and 39-1/2-inch A-800PRO; 40.24-inch Impulse 61 misses. The A-PRO model adds channel-aftertouch keys and pressure-responsive pads, but is a discontinued controller, not an 88-key substitute. The 61SL has separate power/sequencer/CV routing; FLkey is another DAW-focused layout. The MPK261 and 61SL MkIII have different split/control setups.

At 40.25 inches, the same 61-key DIN-and-pressure-pad brief returns eight configurations and adds Impulse 61; A-800PRO is already inside at 39.5 inches and MPK261 at 35.63 inches. Impulse 61 has only 0.01 inch nominal body margin. Read the A-800PRO separately from MPK261, Impulse 61 and the 61SL MkIII; no numeric pass certifies cable, hand or stand clearance.

Requiring USB-C with the 49-key, 34.25-inch, DIN-and-pressure-pad brief excludes Impulse 49 because its documented computer port is USB Type-B. The KeyLab 49, Essential 49, FLkey 49 MK2 and Launchkey 49 MK4 are the distinct documented USB-C matches; a cable adapter does not turn the controller's socket into USB-C.

Check the 25-key DIN/pad setup at 20.5 inches · recheck at 20.75 inches.

Check the 49-key DIN/pad setup at 34 inches · recheck at 34.25 inches.

Check the 61-key DIN/pad setup at 40 inches · recheck at 40.25 inches.

The A-300PRO’s 23-7/8-inch chassis first fits the next selectable 24-inch cap when earlier models, a 25-key floor, DIN Out and pressure-sensitive pads are required. The discontinued 32-key A-PRO has a wider assignable control surface than its note span suggests. The A-500PRO’s 33-1/16-inch chassis first fits the 33.25-inch cap when earlier models, a 49-key floor, DIN Out and pressure-sensitive pads are required. The A-800PRO’s 39-1/2-inch chassis first fits the 39.5-inch cap when earlier models, a 61-key floor, DIN Out and pressure-sensitive pads are required. These are distinct configurations, not a generic “Roland A-series” width.

Check 23.75 inches · compare 24 inches · check 33 inches · compare 33.25 inches · check 39.25 inches · compare 39.5 inches.

Check the same 49-key, width, USB-C, DIN and pad requirements together.

Related reviewed fits for the compact 25-key DIN/pad scenario include MPK Mini Plus II, MiniLab 3, MiniLab 37 and Launchkey 25 MK4; each has distinct key format, software focus, ports and controls. The alternatives do not imply that a compact model reproduces the full-size MPK225 key feel or range.

For wider 61-key comparisons, see the Essential 61 and Launchkey 61 MK4 reviews as well as MPK261, 61SL, FLkey 61 and Impulse 61; their keybed, port, power and controls differ.

The Launchkey 49 MK4 width boundary

At 28.5 inches, twenty-one configurations with documented widths fit, including the 19.3-inch Oxygen Pro 25 and 15.8-inch Oxygen Pro Mini; the 31.5-inch Oxygen Pro 49 remains outside.

At 28.75 inches, twenty-three configurations with documented widths fit; Oxygen Pro 25 and Oxygen Pro Mini are included, while Oxygen Pro 49 at 31.5 inches still misses.

At an exact 28.5-inch width cap, both the 28.74-inch FLkey 49 MK2 and Launchkey 49 MK4 bodies remain outside. At the next valid 28.75-inch cap, both enter because each published chassis is 0.01 inch below that answer. The width-only finder returns twenty-one configurations with documented widths at 28.5 inches, including the 19.3-inch Oxygen Pro 25 and 15.8-inch Oxygen Pro Mini; the 31.5-inch Oxygen Pro 49 remains too wide. At 28.75 inches, the width-only finder returns twenty-three configurations with documented widths because both 28.74-inch models now fit; Oxygen Pro 25 and the Oxygen Pro Mini remain included, while Pro 49 is still outside. The same exact-model widths lead to distinct controllers: FLkey 49 has its FL Studio-focused integration, while Launchkey 49 is a separate Launchkey workflow. These are bare-body matches only; neither 0.01-inch difference accommodates cables, a sustain plug, hands or a stand.

Find every assessed model at or below 28.5 inches · Find every assessed model at or below 28.75 inches.

At a 28.5-inch cap, the five-part 49-key, USB-C, direct-DIN and pressure-pad brief has no assessed match: both 28.74-inch 49-key Novations exceed the body cap. Check that exact five-condition result.

At 28.75 inches, the same five-part brief returns FLkey 49 MK2 and Launchkey 49 MK4. Recheck all five answers at the next width step; only the numeric limit changes.

Read the FLkey 49 MK2 assessment and Launchkey 49 MK4 assessment, then compare the narrower 21.93-inch standard 37 or the 19.80-inch MiniLab 37; each changes the note range and controls.

The Launchkey 25 MK4 width boundary

At an 18-inch cap, eleven width-confirmed models fit, including the 15.8-inch Oxygen Pro Mini, original MPK Mini Plus and both 12.5-inch MPK Mini models; standard Launchkey 25 MK4 at 18.15 inches remains outside.

At 18.25 inches, twelve width-confirmed bodies fit: standard Launchkey 25 MK4 joins the 15.8-inch Oxygen Pro Mini, original MPK Mini Plus and the two 12.5-inch MPK Mini models. The 13.33-inch Novation Minis use TRS Type-A MIDI, while original Plus has USB-B/DIN; none of these bare-body results includes cable or hand clearance.

Find every assessed model at an 18-inch cap · Find every assessed model at an 18.25-inch cap.

• Launchkey 25 MK4 — 18.15-inch body and full-size 25-key range
• Launchkey Mini 25 MK4 — mini keys and a narrower body
• FLkey Mini 25 MK2 — 13.33-inch mini-key body
• MicroLab mk3 — White
• MiniLab 3 — White
• MPK Mini IV — 13.68-inch direct-DIN body

At a 16-inch body cap

At a 16-inch bare-body cap, fifteen configurations fit. KORG's 12.80-inch Black nanoKEY2 and 10.94-inch nanoKEY Studio both join with documented 25-key keyboards; their USB Mini-B and micro-B/Bluetooth routes remain distinct, and neither has documented direct DIN. The 11.10-inch-open nanoKEY Fold, 13.68-inch MPK Mini IV and 15.8-inch Oxygen Pro Mini also fit. The 17.76-inch original MPK Mini Plus remains outside. The Fold's 5.79-inch figure is its folded storage width, not its playing footprint. Other matches include the 12.4-inch APC Key 25 MK2, 13.7-inch LPK25 MK2, 12.5-inch MPK Mini MK3 and Mini Play MK3, Launchkey Mini 25 MK4, FLkey Mini 25 MK2, MicroLab mk3 and MiniLab 3. KORG's 15.55-inch Air-25 and microKEY2-25 are separate mini-key alternatives, not variants of the nanoKEY Studio. The Akai Mini MK3 and Play MK3 use USB-B and an unspecified physical USB connector, respectively; neither establishes USB-C. These body values exclude cable, headphone, hand and support clearance.

The Alesis Q Mini has 32 keys, Q49 MKII has 49 and Q88 MKII has 88, but their exact page/manual records contain no chassis width, so none is counted even at this smallest 16-inch cap. The Q88 DIN connection does not resolve a width unknown. Open the same 16-inch-only result and compare the three exact Q Mini, Q49 MKII and Q88 MKII reviews.

Find every assessed model at or below 16 inches.

• Launchkey Mini 25 MK4
• FLkey Mini 25 MK2
• MiniLab 3 — White

At an 18.75-inch body cap

At an 18.75-inch body cap, twelve source-width-confirmed bodies fit, including the 15.8-inch Oxygen Pro Mini, original MPK Mini Plus (17.76 inches) and both 12.5-inch Mini models; Launchkey Mini 37 at 18.81 inches still misses. MiniLab 37 at 19.80 inches and MPK Mini Plus II at 19.4 inches also exceed this limit. Standard Launchkey 25 offers full-size keys and direct DIN, while the Novation minis use TRS Type-A MIDI. Compare the original Plus, Mini MK3, Mini Play MK3 and Mini IV; body fit does not reserve cable or hand clearance.

Find every assessed model at or below 18.75 inches.

For compact alternatives with distinct keys and controls, compare Launchkey Mini 25, MicroLab mk3, MiniLab 3 and full-size-key Launchkey 25 MK4.

At a 19-inch body cap

At a 19-inch cap, thirteen width-confirmed bodies fit, including the 15.8-inch Oxygen Pro Mini, original MPK Mini Plus and both 12.5-inch Mini models; MiniLab 37 at 19.80 inches and MPK Mini Plus II at 19.4 inches still miss.

At a 19-inch cap, thirteen width-confirmed bodies fit, including the 15.8-inch Oxygen Pro Mini, original MPK Mini Plus and both 12.5-inch Mini models; the 19.3-inch Oxygen Pro 25, MiniLab 37 at 19.80 inches and MPK Mini Plus II at 19.4 inches still miss. The Mini 37 leaves 0.19 inches of nominal body margin, not room for side cables, hands or nearby equipment. Read the original Plus, Mini MK3, Play MK3 and Mini IV reviews alongside the Novation compact models.

Find every assessed model at or below 19 inches.

Compare the Launchkey Mini 37 and Launchkey Mini 25 with full-size-key Launchkey 25 and MiniLab 3 for different note ranges and control layouts.

MPK Mini Plus II crosses the 19.4-inch body boundary

At 19.25 inches, nineteen width-confirmed bodies fit, including the 12.80-inch nanoKEY2, 15.8-inch Oxygen Pro Mini, original MPK Mini Plus (17.76 inches) and both 12.5-inch MPK Mini models; Plus II at 19.4 inches remains outside.

At 19.25 inches, nineteen width-confirmed bodies fit, including the 12.80-inch nanoKEY2, 15.8-inch Oxygen Pro Mini, original MPK Mini Plus (17.76 inches) and both 12.5-inch MPK Mini models; the 19.3-inch Oxygen Pro 25 and Plus II at 19.4 inches remain outside. See the width-only finder result at 19.25 inches.

At 19.5 inches, twenty-two width-confirmed bodies fit; the 19.3-inch Oxygen Pro 25 joins the 15.8-inch Oxygen Pro Mini, original MPK Mini Plus, 12.80-inch nanoKEY2 and both 12.5-inch models, and the separate 19.4-inch Plus II has also entered. Recheck the width-only set at 19.5 inches; the 19.3-inch Pro 25 and 19.4-inch Plus II both pass this next valid quarter-inch cap.

At 19.5 inches, twenty-two width-confirmed bodies fit; Oxygen Pro 25 at 19.3 inches joins the 15.8-inch Oxygen Pro Mini, original MPK Mini Plus, the 12.80-inch nanoKEY2, both 12.5-inch models and the separate 19.4-inch Plus II.

No reviewed source-backed configuration meets this complete 37-key, USB-C, direct-DIN and pressure-pad brief inside a 19.25-inch body cap. This is an empty result only in the reviewed set, not proof that no other maker offers such a keyboard controller. Check all five conditions together at 19.25 inches.

At a 19.5-inch body cap, MPK Mini Plus II is the only reviewed match for the same 37-key minimum, USB-C, direct-DIN and pressure-pad brief. Its 19.4-inch body leaves only 0.1 inch of nominal margin, not cable or hand clearance. Recheck the same five answers at 19.5 inches.

Read the MPK Mini Plus II assessment and compare its compact 37-key layout with MiniLab 3, MiniLab 37 at 19.8 inches and the Launchkey Mini 37, which uses a different MIDI socket and does not meet this exact port/pad brief.

At a 19.75-inch body cap

At 19.75 inches, fifteen published-width bodies fit, including original MPK Mini Plus at 17.76 inches, the 15.8-inch Oxygen Pro Mini, the 19.3-inch Oxygen Pro 25 and both 12.5-inch MPK Mini models; MiniLab 37 at 19.80 remains outside.

At 19.75 inches, fifteen published-width bodies fit, including the 19.3-inch Oxygen Pro 25, original MPK Mini Plus at 17.76 inches, the 15.8-inch Oxygen Pro Mini and 12.5-inch MPK Mini MK3 and Mini Play MK3; MiniLab 37 at 19.80 remains outside. Mini Plus II is a separate 19.4-inch USB-C/DIN model, while original Plus uses USB-B and DIN. For alternate key spans and controls, compare MicroLab mk3, Launchkey Mini 37 and standard Launchkey 25 MK4. Allow more room than these bare-body limits for leads and hands.

Find every assessed model at or below 19.75 inches.

• MiniLab 3 — White

At a 20-inch body cap

At 20 inches, sixteen source-width-confirmed bodies fit, including the original MPK Mini Plus, the 15.8-inch Oxygen Pro Mini, Oxygen Pro 25 at 19.3 inches and both 12.5-inch Mini models.

At 20 inches, sixteen source-width-confirmed bodies fit, including the 19.3-inch Oxygen Pro 25, original MPK Mini Plus (17.76 inches), the 15.8-inch Oxygen Pro Mini and both 12.5-inch Mini models. The 18.81-inch Launchkey Mini 37, 19.4-inch Plus II and 19.80-inch MiniLab 37 leave 0.19, 0.6 and 0.20 inches respectively, not cable or hand clearance. Read the original MPK Mini Plus, Mini MK3 and Play MK3 assessments alongside Mini IV; the MicroLab mk3 and standard Launchkey 25 MK4 offer different controls and key range.

Find every assessed model at or below 20 inches.

• MiniLab 3 — White
• MiniLab 37 — White

At a 21.5-inch body cap

At 21.5 inches, sixteen source-width-confirmed bodies fit, including the three reviewed Akai Mini configurations, Oxygen Pro Mini and the 19.3-inch Oxygen Pro 25; KeyStep 37 mk2 at 21.7 inches still misses.

At 21.5 inches, sixteen source-width-confirmed bodies fit, including the 19.3-inch Oxygen Pro 25, all three reviewed Akai Mini configurations and the 15.8-inch Oxygen Pro Mini; KeyStep 37 mk2 at 21.7 inches still misses. Original Plus offers 37 compact keys with USB-B/DIN, while the two 12.5-inch MK3 bodies are 25-key options. The 19.4-inch MPK Mini Plus II also fits this width cap, but it is a separate USB-C generation. KeyStep mk2's 32-key width remains unconfirmed. Reserve cable and hand clearance separately.

Find every assessed model at or below 21.5 inches.

• MiniLab 3 — White
• MiniLab 37 — White

At a 21.75-inch body cap

At 21.75 inches, seventeen bodies fit, including Oxygen Pro 25 at 19.3 inches, the 15.8-inch Oxygen Pro Mini, original MPK Mini Plus and both 12.5-inch Mini models; the 21.93-inch FLkey and Launchkey 37 bodies remain outside.

At 21.75 inches, seventeen bodies fit, including the 19.3-inch Oxygen Pro 25, 15.8-inch Oxygen Pro Mini, original MPK Mini Plus and both 12.5-inch Mini models; the 21.93-inch FLkey and Launchkey 37 bodies remain outside. The 18.81-inch Launchkey Mini 37 is narrower but uses mini keys and TRS Type-A output; the 19.4-inch Plus II is a distinct wider 37-key USB-C/DIN option. KeyStep mk2 remains unknown for width.

Find every assessed model at or below 21.75 inches.

• MiniLab 3 — White
• MiniLab 37 — White
• KeyStep 37 mk2 — 37-key

The Launchkey 37 MK4 width boundary

Both current FLkey 37 and standard Launchkey 37 MK4 are 21.93 inches wide: at 21.75 inches neither passes, and at 22 inches they join sixteen smaller bodies, including the 19.3-inch Oxygen Pro 25, making nineteen assessed matches.

Both current FLkey 37 and standard Launchkey 37 MK4 are 21.93 inches wide: at 21.75 inches neither passes, and at 22 inches they join seventeen smaller width-confirmed bodies, including the 19.3-inch Oxygen Pro 25, making nineteen assessed matches. That narrower set also includes original MPK Mini Plus and both 12.5-inch Mini MK3/Play bodies as well as USB-C Plus II. Both Novation 37-key models leave only 0.07 inch of bare-body margin at 22, not practical space for connectors, hands or a pedal.

Find every assessed model at or below 22 inches.

Read the standard Launchkey 37 MK4 assessment · compare the Mini 37 assessment for the narrower mini-key, TRS-output configuration.

Read the FLkey 37 MK2 assessment for the current full-size USB-C/DIN alternative.

A 49-key computer-to-hardware setup at a tight desk limit

At a 28.5-inch cap, the five-part 49-key, USB-C, direct-DIN and pressure-pad brief has no assessed match: both 28.74-inch 49-key Novations exceed the body cap. This result applies to the researched set and does not establish a broader market absence.

Check the exact 49-key USB-C, DIN and pressure-pad brief at 28.5 inches.

At 28.75 inches, the same five-part brief returns FLkey 49 MK2 and Launchkey 49 MK4. Their 28.74-inch chassis leave only 0.01 inch of nominal body margin before cables, pedals or hand clearance. Both document USB-C, direct DIN and pressure-sensitive pads, but the products have distinct control surfaces and DAW workflows. The external instrument still needs its own power and audio-monitoring route.

Check the same 49-key computer-to-hardware brief at 28.75 inches.

Read the FLkey 49 MK2 assessment and Launchkey 49 MK4 assessment; compare the 30.98-inch KeyLab 49 or 31.1-inch Essential 49 only if a wider desk limit is acceptable.

At a 23-inch body cap

At 23 inches, nineteen confirmed-width bodies fit, including Oxygen Pro 25 at 19.3 inches, the 15.8-inch Oxygen Pro Mini and three MPK Mini models; the 23.2-inch KeyStep Pro editions still miss.

At 23 inches, nineteen confirmed-width bodies fit, including the 19.3-inch Oxygen Pro 25, the 15.8-inch Oxygen Pro Mini and three MPK Mini models; the 23.2-inch KeyStep Pro editions still miss. The original Plus is a 37-key USB-B/DIN option, unlike the USB-C Plus II and the two 25-key Mini MK3 variants. KeyStep mk2 32-key and standard KeyLab 61 widths remain unconfirmed. Compare the original Plus, Play MK3, Mini MK3 and longer 37-key options; reserve clearance beyond each body measurement.

Find every assessed model at or below 23 inches.

• MiniLab 3 — White
• MiniLab 37 — White
• KeyStep 37 mk2 — 37-key

The two KeyStep Pro editions are just beyond this cap at 23.2 inches: standard White and Chroma. Their exact width enters at the next valid quarter-inch value, 23.25 inches.

At a 23.25-inch body cap

At 23.25 inches, twenty-one source-width-confirmed bodies fit, including Oxygen Pro 25, the Oxygen Pro Mini, all three MPK Mini configurations and both 23.2-inch KeyStep Pro editions.

At 23.25 inches, twenty-one source-width-confirmed bodies fit, including the 19.3-inch Oxygen Pro 25, the 15.8-inch Oxygen Pro Mini, all three MPK Mini configurations and both 23.2-inch KeyStep Pro editions. Standard White and Chroma Pro remain distinct; Chroma documents per-track LED-color editing. Read the original MPK Mini Plus, Play MK3, Mini MK3 and USB-C/DIN Plus II; the 0.05-inch Pro margin is not connector clearance.

Find every assessed model at or below 23.25 inches.

• MiniLab 3 — White
• MiniLab 37 — White
• KeyStep 37 mk2 — 37-key
• KeyStep Pro — standard White
• KeyStep Pro Chroma — dark gray

At a 30.75-inch body cap

At 30.75 inches, twenty-three width-confirmed bodies fit; the 15.8-inch Oxygen Pro Mini, 19.3-inch Oxygen Pro 25, original MPK Mini Plus and both 12.5-inch Mini models are included, while the 30.98-inch KeyLab 49 still misses.

At 30.75 inches, twenty-three width-confirmed bodies fit, including the 19.3-inch Oxygen Pro 25, the 15.8-inch Oxygen Pro Mini, original MPK Mini Plus and both 12.5-inch Mini models, while the 30.98-inch KeyLab 49 still misses. Standard KeyLab 61 and 32-key KeyStep mk2 still have no verified width. Compare the original Plus, Mini MK3 and Play MK3 with the 19.4-inch USB-C/DIN Plus II and 49-key alternatives before treating width as the only need.

Find every assessed model at or below 30.75 inches.

• MiniLab 3 — White
• MiniLab 37 — White
• KeyStep 37 mk2 — 37-key
• KeyStep Pro — standard White
• KeyStep Pro Chroma — dark gray

At a 31-inch body cap

At 31 inches, thirty-five width-confirmed models fit, including the 12.80-inch nanoKEY2, Oxygen Pro 25 at 19.3 inches, the 15.8-inch Oxygen Pro Mini, original MPK Mini Plus and both 12.5-inch Mini models; Essential 49 at 31.1 inches still misses.

At 31 inches, thirty-five width-confirmed models fit, including the 12.80-inch nanoKEY2, the 19.3-inch Oxygen Pro 25, 15.8-inch Oxygen Pro Mini, original MPK Mini Plus and both 12.5-inch Mini models; Essential 49 at 31.1 inches and Oxygen Pro 49 at 31.5 still miss. Standard KeyLab 61 and KeyStep mk2 widths remain unknown.

Find every assessed model at or below 31 inches.

The 19.4-inch USB-C/DIN MPK Mini Plus II also clears this body cap; its 37 mini-key range is distinct from the nearby 49-key alternatives.

• MiniLab 3 — White
• MiniLab 37 — White
• KeyStep 37 mk2 — 37-key
• KeyStep Pro — standard White
• KeyStep Pro Chroma — dark gray
• KeyLab 49 mk3 — White

At a 31.25-inch body cap

At 31.25 inches, twenty-five confirmed-width bodies fit, including Oxygen Pro 25 at 19.3 inches, the 15.8-inch Oxygen Pro Mini, three MPK Mini models and both 49-key Novations; Oxygen Pro 49 at 31.5 inches still misses.

At 31.25 inches, twenty-five confirmed-width bodies fit, including the 19.3-inch Oxygen Pro 25, the 15.8-inch Oxygen Pro Mini, three MPK Mini models and both 49-key Novations; Oxygen Pro 49 at 31.5 inches still misses. Essential 61 and 88 exceed this cap; standard KeyLab 61 and 32-key KeyStep mk2 widths remain unconfirmed. Compare the original Plus, Mini MK3 and Play MK3 with 49-key options, then verify each model's distinct range and setup.

Find every assessed model at or below 31.25 inches.

The MPK Mini Plus II is another confirmed-width 37-key body inside this cap, not a substitute for the wider 49-key layouts.

• MiniLab 3 — White
• MiniLab 37 — White
• KeyStep 37 mk2 — 37-key
• KeyStep Pro — standard White
• KeyStep Pro Chroma — dark gray
• KeyLab 49 mk3 — White
• KeyLab Essential 49 mk3 — White

The Oxygen Pro 49 width boundary

At 31.5 inches, twenty-six width-confirmed bodies fit; the Oxygen Pro 49 enters at its published 31.5-inch body width. It is excluded at 31.25 inches, alongside the wider Pro 61; Oxygen Pro 25 is already inside. See the width-only finder result at 31.5 inches. A chassis pass does not reserve space for cables, hands or a stand.

At 31.5 inches, twenty-six width-confirmed bodies fit; Oxygen Pro 49 meets that body cap, while the 38-inch Oxygen Pro 61 remains outside.

At a 34.75-inch body cap

At 34.75 inches, twenty-six width-confirmed configurations pass, including Oxygen Pro 25 and Pro 49, the 15.8-inch Oxygen Pro Mini and earlier compact models; Essential 61 at 35 inches still misses.

At 34.75 inches, twenty-six width-confirmed configurations pass, including Oxygen Pro 25 and Pro 49 (31.5 inches), the 15.8-inch Oxygen Pro Mini, original MPK Mini Plus and both 12.5-inch Mini models; Essential 61 at 35 inches and Oxygen Pro 61 at 38 inches still miss. Standard KeyLab 61 and 32-key KeyStep mk2 remain unknown for width. Read the original Plus, Mini MK3 and Play MK3 beside the longer controllers.

Find every assessed model at or below 34.75 inches.

The 19.4-inch Plus II fits comfortably under this bare-body cap; its USB-C and direct DIN routes differ from the original Plus.

• MiniLab 3 — White
• MiniLab 37 — White
• KeyStep 37 mk2 — 37-key
• KeyStep Pro — standard White
• KeyStep Pro Chroma — dark gray
• KeyLab 49 mk3 — White
• KeyLab Essential 49 mk3 — White

At a 35-inch body cap

At exactly 35 inches, twenty-seven width-confirmed bodies fit, including Oxygen Pro 25 and Pro 49; the 38-inch Oxygen Pro 61 and wider 88-key bodies remain outside.

At exactly 35 inches, twenty-seven width-confirmed bodies fit, including Oxygen Pro 25 and Pro 49, the 15.8-inch Oxygen Pro Mini, original MPK Mini Plus and both 12.5-inch Mini models; the 38-inch Oxygen Pro 61 and 88-key bodies remain outside. Standard KeyLab 61 and 32-key KeyStep mk2 remain withheld because their exact widths are unverified. Compare the original Plus, Mini MK3 and Play MK3 with longer keybeds as distinct range options.

Find every assessed model at or below 35 inches.

The 37-mini-key MPK Mini Plus II is among the narrower bodies within this limit; the body screen does not show room for DIN, CV or power leads.

• MiniLab 3 — White
• MiniLab 37 — White
• KeyStep 37 mk2 — 37-key
• KeyStep Pro — standard White
• KeyStep Pro Chroma — dark gray
• KeyLab 49 mk3 — White
• KeyLab Essential 49 mk3 — White
• KeyLab Essential 61 mk3 — White

The Launchkey 61 MK4 width boundary

At 35.25 inches, twenty-nine width-confirmed bodies fit, including Oxygen Pro 25 and 49 at 19.3 and 31.5 inches; Oxygen Pro 61 at 38 inches remains outside.

At a 35-inch body cap, both FLkey 61 MK2 and Launchkey 61 MK4 are excluded by their 35.24-inch widths; the next supported quarter-inch answer, 35.25, admits them. Both 61-key boards use semi-weighted keybeds, but their DAW integration and control surfaces differ. Their documented bodies leave only 0.01 inch of nominal chassis margin at 35.25. Measure cable bends, desk depth, pedal space and hand room separately.

At 35.25 inches, twenty-nine width-confirmed bodies fit, including the 19.3-inch Oxygen Pro 25, 31.5-inch Pro 49, 15.8-inch Oxygen Pro Mini, original MPK Mini Plus and both 12.5-inch Mini models. This width-only set also contains the 19.4-inch MPK Mini Plus II, the 13.68-inch MPK Mini IV, 28.74-inch FLkey 49, 35.24-inch FLkey 61 and 21.93-inch FLkey 37; the 38-inch Oxygen Pro 61 remains outside. This is separate from the 61-key five-condition example below.

See all width-confirmed matches at 35 inches · See all width-confirmed matches at 35.25 inches.

At a 35-inch cap, FLkey 61 MK2 and Launchkey 61 MK4 are excluded by their 35.24-inch bodies; Essential 61 remains the one reviewed match. This case also requires at least 61 keys, USB-C to the computer, direct five-pin DIN and pressure-sensitive pads. See that unchanged five-condition finder result.

At 35.25 inches, the same 61-key USB-C, direct-DIN and pressure-pad brief returns Essential 61, FLkey 61 MK2 and Launchkey 61 MK4. Recheck the same five conditions at 35.25 inches; only the numeric body limit changes.

Read the source-based FLkey 61 assessment and Launchkey 61 assessment and dimensions; compare the Essential 61 assessment for its different documented width and control surface.

At 37.75 inches, Oxygen Pro 61 still misses

At 37.75 inches, twenty-nine width-confirmed bodies fit. The Oxygen Pro 49 at 31.5 inches is within this body cap, while the 38-inch Pro 61 remains outside by 0.25 inch. Check the width-only result at 37.75 inches; this is a chassis limit, not a clearance plan.

At 37.75 inches, twenty-nine width-confirmed bodies fit; Oxygen Pro 49 is inside, but Oxygen Pro 61 at 38 inches is still outside.

At 38 inches, Oxygen Pro 61 enters exactly

At 38 inches, thirty width-confirmed bodies fit. The Oxygen Pro 61 enters exactly at its published body width; the 25- and 49-key siblings were already inside at 19.3 and 31.5 inches. See the width-only finder result at 38 inches. Exact-width entry leaves no nominal margin for plugs or hands.

At 38 inches, thirty width-confirmed bodies fit; Oxygen Pro 61 enters exactly at its body width, leaving no nominal cable or hand clearance.

Oxygen Pro size boundaries under fixed key and DIN needs

These finder examples hold “No, current models only” and direct five-pin DIN fixed; the key floor and body cap change together to show which Oxygen Pro size fits. The width condition is only a published-chassis screen. It does not prove connector, stand or hand clearance.

At a 49.5-inch body cap

At 49.5 inches, thirty width-confirmed configurations fit, including all three standard Oxygen Pro sizes; all three documented 88-key bodies remain outside.

At 49.5 inches, thirty width-confirmed configurations fit, including all three standard Oxygen Pro sizes, the smaller Pro Mini and all three MPK Mini models; all three documented 88-key bodies remain outside. Standard KeyLab 61 and 32-key KeyStep mk2 still have no verified width; compare the original Plus, Mini MK3 and Play MK3 with the longer range options to see why width is not playing range.

Find every assessed model at or below 49.5 inches.

Within this cap, the 19.4-inch MPK Mini Plus II offers a compact 37-key alternative to these longer keybeds.

• MiniLab 3 — White
• MiniLab 37 — White
• KeyStep 37 mk2 — 37-key
• KeyStep Pro — standard White
• KeyStep Pro Chroma — dark gray
• KeyLab 49 mk3 — White
• KeyLab Essential 49 mk3 — White
• KeyLab Essential 61 mk3 — White

At a 49.75-inch body cap

At 49.75 inches, thirty-one width-confirmed bodies fit, including Oxygen Pro 25, 49 and 61 and the smaller Oxygen Pro Mini.

At 49.75 inches, thirty-one width-confirmed bodies fit, including Oxygen Pro 25, 49 and 61 at 19.3, 31.5 and 38 inches, the 15.8-inch Oxygen Pro Mini, original MPK Mini Plus and both 12.5-inch Mini models. Launchkey 88 at 50.16 inches and the 50.98-inch non-Essential KeyLab 88 still miss; standard KeyLab 61 and 32-key KeyStep mk2 remain unverified. Compare the Mini variants with longer keybeds; add cable bends, stand support and hand space before deciding a station fits.

Find every assessed model at or below 49.75 inches.

The 37-key MPK Mini Plus II is another confirmed-width result within this body cap; its mini keys and connectors still require their own setup checks.

• MiniLab 3 — White
• MiniLab 37 — White
• KeyStep 37 mk2 — 37-key
• KeyStep Pro — standard White
• KeyStep Pro Chroma — dark gray
• KeyLab 49 mk3 — White
• KeyLab Essential 49 mk3 — White
• KeyLab Essential 61 mk3 — White
• KeyLab Essential 88 mk3 — White

When the width cap is 60 inches

The Roland A-88MKII is 56-5/16 inches wide and passes a 60-inch bare-body cap. Models with unconfirmed body widths, such as the standard KeyLab 61 and 32-key KeyStep mk2, remain withheld rather than being assumed to fit. The nanoKEY2, Oxygen Pro models, Oxygen Pro Mini and compact Akai MPK Mini family offer different widths and controls. See the same 60-inch width-only result; plan extra space for cables, hands and support.

Find every assessed model with a verified width at or below 60 inches.

The MPK Mini Plus II is also one of the confirmed-width results; the threshold only screens chassis dimensions, not a complete playing or cabling setup.

• MiniLab 3 — White
• MiniLab 37 — White
• KeyStep 37 mk2 — 37-key
• KeyStep Pro — standard White
• KeyStep Pro Chroma — dark gray
• KeyLab 49 mk3 — White
• KeyLab Essential 49 mk3 — White
• KeyLab Essential 61 mk3 — White
• KeyLab Essential 88 mk3 — White
• KeyLab 88 mk3 — White, fully weighted
• Launchkey 61 MK4 — 35.24-inch body
• Launchkey 88 MK4 — 50.16-inch body

Read why the standard KeyLab 61 mk3 needs a confirmed dimension before width matching.

At a 50.75-inch body cap

At 50.75 inches, thirty-two verified body widths fit, including the three standard Oxygen Pro sizes and Oxygen Pro Mini.

At 50.75 inches, thirty-two verified body widths fit, including Oxygen Pro 25, Pro 49 and Pro 61, the 15.8-inch Oxygen Pro Mini, all three MPK Mini models, Essential 88 and the 50.16-inch Launchkey 88; the 50.98-inch KeyLab 88 still misses. Standard KeyLab 61 and 32-key KeyStep mk2 still have unknown widths; measure beyond the chassis for cable and hand clearance.

Find every assessed model at or below 50.75 inches.

The 19.4-inch MPK Mini Plus II is among the fitting bodies, but its compact size says nothing about clearance for its separate connectors.

• MiniLab 3 — White
• MiniLab 37 — White
• KeyStep 37 mk2 — 37-key
• KeyStep Pro — standard White
• KeyStep Pro Chroma — dark gray
• KeyLab 49 mk3 — White
• KeyLab Essential 49 mk3 — White
• KeyLab Essential 61 mk3 — White
• KeyLab Essential 88 mk3 — White
• MicroLab mk3 — White
• Launchkey 61 MK4 — 35.24-inch body
• Launchkey 88 MK4 — 50.16-inch body

At a 51-inch body cap

At a 51-inch cap, thirty-six confirmed-width configurations fit, including M-Audio Oxygen Pro 25/49/61 and Oxygen 25/49/61 (MKV).

At a 51-inch cap, thirty-six confirmed-width configurations fit, including M-Audio Oxygen Pro 25/49/61, the distinct Oxygen 25/49/61 (MKV), the 15.8-inch Oxygen Pro Mini, original MPK Mini Plus and both 12.5-inch Mini models. The fully weighted KeyLab 88 chassis leaves only 0.02 inches of nominal margin. A body-size pass does not show whether that 34.61-pound controller suits any desk or stand; check support, load and connector clearance. The three 88-key reviews describe distinct actions and control surfaces.

Find every assessed model at or below 51 inches.

The 37-mini-key MPK Mini Plus II is a confirmed-width configuration inside this cap; do not confuse body fit with usable workspace.

• MiniLab 3 — White
• MiniLab 37 — White
• KeyStep 37 mk2 — 37-key
• KeyStep Pro — standard White
• KeyStep Pro Chroma — dark gray
• KeyLab 49 mk3 — White
• KeyLab Essential 49 mk3 — White
• KeyLab Essential 61 mk3 — White
• KeyLab Essential 88 mk3 — White
• MicroLab mk3 — White
• KeyLab 88 mk3 — White, fully weighted
• Launchkey 61 MK4 — 35.24-inch body
• Launchkey 88 MK4 — semi-weighted 88-key controller

The Launchkey 88 MK4 width boundary

At a 50-inch body cap, thirty-one width-confirmed configurations fit, including Oxygen Pro 25, 49 and 61; Launchkey 88 MK4 still misses.

At 50.25 inches, thirty-two width-confirmed configurations fit; Oxygen Pro 25, 49 and 61 remain included as Launchkey 88 MK4 enters.

At a 50-inch body cap, Launchkey 88's 50.16-inch body does not fit; Essential 88 and the two 35.24-inch 61-key Novations do. At 50.25 inches, the 50.16-inch Launchkey 88 MK4 enters the width-confirmed set. At 50.25, its 88 semi-weighted keys and control surface are a different option from Essential 88's 49.53-inch body and the fully weighted 50.98-inch KeyLab 88, which still misses. A quarter-inch body comparison does not establish desk depth, stand load, hand space or cable clearance.

At a 50-inch body cap, thirty-one width-confirmed configurations fit, including Oxygen Pro 25, 49 and 61, the 15.8-inch Oxygen Pro Mini, original MPK Mini Plus and both 12.5-inch Mini models; Launchkey 88 MK4 still misses. At 50.25 inches, thirty-two width-confirmed configurations fit; the Oxygen Pro sizes and smaller Oxygen Pro Mini remain included as the Launchkey 88 MK4 enters.

See all width-confirmed matches at 50 inches · See all width-confirmed matches at 50.25 inches.

At a 50-inch cap, Essential 88 is the only reviewed match; Launchkey 88 at 50.16 inches is excluded by the body-width limit. This five-condition case also requires at least 88 keys, USB-C, direct DIN and pressure-sensitive pads. See the five-condition finder result at 50 inches.

At 50.25 inches, the same 88-key USB-C, direct-DIN and pressure-pad brief also admits Launchkey 88 MK4. Recheck that exact brief at 50.25 inches; the other four answers are unchanged.

Alesis Q88 MKII has 88 keys and DIN but is omitted from both five-condition answers: neither a numeric body width, USB-C socket shape nor separate pad-pressure response is documented. Compare the same five conditions at 50 inches with 50.25 inches.

Read the source-based Launchkey 88 MK4 assessment and published dimensions.

Read the Launchkey 61 assessment and Essential 88 assessment for other models included in the nearby width-only results.

Earlier Launchkey MK3 width steps

With earlier=yes, Launchkey 25 MK3 at 18.23 inches enters at 18.25; Launchkey 37 MK3 at 21.85 enters at 22; Launchkey 49 MK3 at 31.06 enters at 31.25; Launchkey 61 MK3 at 37.48 enters at 37.5; and Launchkey 88 MK3 at exactly 50.00 inches passes a 50-inch cap.

When earlier models are explicitly included, the MK3 bodies add their own quarter-inch boundaries: 18.23 inches for Launchkey 25, 21.85 for 37, 31.06 for 49, 37.48 for 61, and exactly 50.00 for 88; Mini 25 is 12.99 inches, already below the finder's 16-inch minimum. At a 16-inch cap Mini MK3 is in the width results, but the full-size 25 misses. At 18.25 the full-size 25 enters; at 22 the 37 enters; at 31.25 the 49 enters; at 37.5 the 61 enters; and at 50 the 88 enters. Each is a body-only screen; cables, hands, pedals and stand support need their own space.

At the 18-inch cap with earlier models enabled, Launchkey 25 MK3's 18.23-inch body stays outside; the 12.99-inch Launchkey Mini MK3 still fits.

See the width-only result at 18 inches with earlier models included · See it at the next 18.25-inch width step.

At 18.25 inches, Launchkey 25 MK3 joins the body-width matches; the Mini MK3 remains in both results because it is below 16 inches.

Read the full-size Launchkey 25 MK3 assessment and the compact Mini MK3 assessment.

At a 21.75-inch cap, the 21.85-inch Launchkey 37 MK3 does not enter yet, while the smaller 25 MK3 body fits.

At 22 inches, Launchkey 37 MK3 enters the width matches, joining the smaller Launchkey MK3 bodies.

With earlier models included, Launchkey 37 MK3 at 21.85 inches misses 21.75 and enters at 22; Launchkey 49 MK3 at 31.06 misses 31 and enters at 31.25; and Launchkey 61 MK3 at 37.48 misses 37.25 and enters at 37.5.

Check the 21.75-inch body cap · Check the next 22-inch step · Check 31 inches · Check 31.25 inches · Check 37.25 inches · Check 37.5 inches.

Read the separate 37, 49 and 61 MK3 assessments before comparing generation-specific controls and port types.

At 31 inches, Launchkey 49 MK3's 31.06-inch body stays out, while its smaller MK3 siblings fit.

At 31.25 inches, Launchkey 49 MK3 is admitted at the 31.06-inch bare-body width.

At 37.25 inches, Launchkey 61 MK3's 37.48-inch body remains outside; the 49 MK3 already fits.

At 37.5 inches, Launchkey 61 MK3 joins the earlier width matches.

With earlier models included, the 50.00-inch Launchkey 88 MK3 fails a 49.75-inch body cap and enters at the 50-inch setting; the 50.16-inch MK4 still fails there.

Check all width-confirmed matches at 49.75 inches · Recheck at a 50-inch cap.

The 49.75-inch setting admits Essential 88 but not either Launchkey 88. At 50 inches, the earlier 88 MK3 joins while MK4 remains too wide. The MK3 guide's listed mass has an unresolved conversion conflict, so do not use a guessed weight to choose a stand.

At 49.75 inches, the 50-inch Launchkey 88 MK3 remains outside while 49.53-inch Essential 88 fits.

At a 50-inch cap, Launchkey 88 MK3 enters by its exact 50.00-inch listed width; the 50.16-inch MK4 remains outside.

Read the earlier Launchkey 88 MK3 assessment and compare the newer MK4 body and connector details.

Earlier FLkey MK1 widths cross the cap only when range and ports also fit

The earlier FLkey MK1 bodies are distinct from their current MK2 namesakes: the first-generation 37, 49 and 61 models are listed at 21.85, 31.06 and 37.48 inches and use USB Type-B with direct DIN. The 37/49/61 English guides document pad-aftertouch settings, not keyboard aftertouch; the 49/61 action is not documented as semi-weighted. This section keeps the user’s earlier-model choice, key floor, width, DIN and pad-pressure requirements together. Every width is bare body only.