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Head to head · Prices checked Nov 11, 2026

Nuphy Air60 V2 vs MMD KM40

Get the Nuphy Air60 V2 for the 2,500 mAh battery.

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Quick verdict

Which one should you get?

Get the

Nuphy Air60 V2

Battery

Build quality in the top 15% of 60% boards under $100.

Rules this board out

  • Low-profile switches and keycaps only. Standard MX keycaps will not fit.
  • Compact layout only. No function row, dedicated arrow keys, or numpad.

Get the

MMD KM40

Build quality in the top 10% of 40% boards under $150.

Rules this board out

  • Compact layout only. No function row, dedicated arrow keys, or numpad.

What actually differs

The differences that matter

Skip the 40-row spec sheet. These are the specs that change how each board feels, sounds, and fits your desk.

Nuphy Air60 V2

MMD KM40

  • Layout size

    60%

    40%

  • Battery

    2,500 mAh

    2,000 mAh

    A larger battery means fewer cables during the day

  • Low profile

    Yes

    No

  • Case material

    ABS, Aluminum

    Aluminum

  • Switch options

    Clicky, Linear, Low-profile Mechanical, Tactile

    Linear, Tactile

KeebFinder scores

How we score
  • Nuphy Air60 V2
  • MMD KM40
Performance
73
60
Build quality
80
82
Productivity
82
69
Customizability
94
83
Portability
87
84

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • QMK
  • VIA
  • Sound dampening
  • Keycaps: PBT
See every spec side by side

Full specs

Nuphy Air60 V2 vs MMD KM40 specs

Every tracked spec, side by side. Rows marked with a dot differ between the boards.

11 of 26 specs differ

Nuphy Air60 V2

MMD KM40

Typing & switches

Switch options

Clicky, Linear, Low-profile Mechanical, Tactile
Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

—
Gasket Mount

Low profile

Yes
No

Sound dampening

Yes
Yes

Layout

Layout size

60%
40%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Display

None
None

Media keys

Yes
No

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, 2.4 GHz, Wired

Max polling rate

1,000 Hz
—

Battery

2,500 mAhBetter
2,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum
Aluminum

Plate material

Aluminum
Polycarbonate

Keycaps

PBT
PBT

Weight

463 g
620 g

Dimensions

14 x 297 x 107 mm
—

Typing angle

3°
—

Backlight

RGB
RGB

Firmware & software

QMK

Yes
Yes

VIA

Yes
Yes

N-key rollover

Yes
No

Mac & Windows

Yes
No

Extras

Released

2023
2026

Where to buy

Compare prices

Live prices from the stores we track, cheapest in-stock offer first.

Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.

Lowest price across stores, Amazon excluded.

MMD KM402 stores

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