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.
Jamesdonkey A3
MMD KM40
Layout size
75%
40%
Battery
3,000 mAh
2,000 mAh
Case material
ABS, PBT, Plastic, Polycarbonate
Aluminum
Switch options
Clicky, Linear, Tactile
Linear, Tactile
Knob
Yes
No
- Jamesdonkey A3
- MMD KM40
- Performance
- 6261
- Build quality
- 6683
- Productivity
- 9169
- Customizability
- 8584
- Portability
- 7984
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Mount style: Gasket Mount
- Sound dampening
- Plate material: Polycarbonate
- Keycaps: PBT
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Jamesdonkey A3
No owner reviews collected yet.
MMD KM40
4 owner reviews
“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”
Jamesdonkey A3 vs MMD KM40 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
13 of 25 specs differ
Jamesdonkey A3
MMD KM40
Switch options
Hot-swappable
Mount style
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Knob
Display
Media keys
Connection
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Backlight
QMK
VIA
N-key rollover
Mac & Windows
Released
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
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