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Head to head · Prices checked Nov 7, 2026

AULA F75 vs MMD KM40

Get the AULA F75 for the 4,000 mAh battery and knob.

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Battery

AULA F75

EPOMAKER x AULA F75

4.5 (510)

$42at Epomaker

90-day low

Quick verdict

Which one should you get?

Get the

AULA F75

Battery

Build quality in the bottom 35% of 75% boards under $50.

Rules this board out

  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
  • No 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.

AULA F75

MMD KM40

  • Layout size

    75%

    40%

  • Battery

    4,000 mAh

    2,000 mAh

    A larger battery means fewer cables during the day

  • Case material

    Plastic

    Aluminum

  • Switch options

    Linear, Silent

    Linear, Tactile

  • Knob

    Yes

    No

KeebFinder scores

How we score
  • AULA F75
  • MMD KM40
Performance
63
61
Build quality
66
82
Productivity
93
69
Customizability
82
83
Portability
83
84

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Mount style: Gasket Mount
  • Sound dampening
See every spec side by side

From real owners

What owners say

Ratings and quotes collected from verified store reviews, including the critical ones.

AULA F75

4.5

510 owner reviews

Praise
“Works exactly as intended and still works as new. The 2.4 GHz Receiver doesn't communicate correctly and isn't reliable but on BT and Cable it works perfectly”
MegaNoobyYTVerified buyer· via Epomaker
Critique
“I made an order for EPOMAKER x AULA 75 with express shipping on 27/1/24. Emailed the team TWICE. Now its 19/3/24, and i still dont have the item. Very poor service”
Faisal A.Verified buyer· via Epomaker

MMD KM40

5.0

4 owner reviews

Praise
“Keycaps are dyesub, but still PBT Tactile switches feature a proper tactile feeling with great typing experience The case feels and looks really premium layer activation could be nicer but in the end you just gotta get used to the board”
Andi· via MonacoKeys

Full specs

AULA F75 vs MMD KM40 specs

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

15 of 26 specs differ

AULA F75

MMD KM40

Typing & switches

Switch options

Linear, Silent
Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
No

Layout

Layout size

75%
40%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

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

4,000 mAhBetter
2,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

Plastic
Aluminum

Plate material

—
Polycarbonate

Keycaps

ABS, PBT
PBT

Weight

1,023 g
620 g

Dimensions

43 x 143 x 323 mm
—

Backlight

RGB, south-facing
RGB

Firmware & software

QMK

No
Yes

VIA

No
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.

AULA F755 stores
MMD KM402 stores

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