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Head to head · Prices checked Oct 25, 2026

KBDFans Agar Mini vs MMD KM40

Get the MMD KM40 for the 2,000 mAh battery.

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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.

KBDFans Agar Mini

MMD KM40

  • Connection

    Bluetooth, Wired

    Bluetooth, 2.4 GHz, Wired

    Wireless for several devices and wired for lower latency

  • Battery

    1,000 mAh

    2,000 mAh

    A larger battery means fewer cables during the day

  • Case material

    Aluminum, Brass, Polycarbonate

    Aluminum

  • Weight

    700 g

    620 g

    Heavier boards stay planted and lighter ones travel

  • Plate material

    Aluminum, CarbonFiber, FR4, Polycarbonate

    Polycarbonate

KeebFinder scores

How we score
  • KBDFans Agar Mini
  • MMD KM40
Performance
63
61
Build quality
94
83
Productivity
94
69
Customizability
94
84
Portability
87
84

What they share

  • Layout size: 40%
  • Hot-swappable
  • Mount style: Gasket Mount
  • QMK
  • VIA
  • Sound dampening
See every spec side by side

Full specs

KBDFans Agar Mini vs MMD KM40 specs

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

11 of 26 specs differ

KBDFans Agar Mini

MMD KM40

Typing & switches

Switch options

—
Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
No

Layout

Layout size

40%
40%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Display

None
None

Connectivity & battery

Connection

Bluetooth, Wired
Bluetooth, 2.4 GHz, Wired

Max polling rate

1,000 Hz
—

Battery

1,000 mAh
2,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

Aluminum, Brass, Polycarbonate
Aluminum

Plate material

Aluminum, CarbonFiber, FR4, Polycarbonate
Polycarbonate

Keycaps

—
PBT

Weight

700 g
620 g

Dimensions

40 x 250 x 120 mm
—

Typing angle

9°
—

Backlight

None
RGB

Firmware & software

QMK

Yes
Yes

VIA

Yes
Yes

VIAL

Yes
No

N-key rollover

Yes
No

Mac & Windows

Yes
No

Extras

Released

2025
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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