Epomaker EK21 vs MMD KM40
Get the Epomaker EK21 for knob. Get the MMD KM40 for the 2,000 mAh battery.
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.
Epomaker EK21
MMD KM40
Layout size
Numpad
40%
Battery
1,000 mAh
2,000 mAh
Case material
ABS
Aluminum
Switch options
Linear
Linear, Tactile
Knob
Yes
No
- Epomaker EK21
- MMD KM40
- Performance
- 7961
- Build quality
- 7783
- Productivity
- 8869
- Customizability
- 8284
- Portability
- 8884
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Mount style: Gasket Mount
- VIA
- Sound dampening
- Plate material: Polycarbonate
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Epomaker EK21
34 owner reviews
“Great wireless connectivity, sounds and feels as good as my 200$ custom keyboard. Great buy especially with the discount, would definitely buy again.”
“I have had this thing for years, I have updated to every Json file and firmware file I can find and it has NEVER worked right, Either the Json file or the firmware is jacked up and no one at Epomaker can give me any explanation. This numpad is the reason I…”
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”
Epomaker EK21 vs MMD KM40 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
10 of 24 specs differ
Epomaker EK21
MMD KM40
Switch options
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Knob
Display
Connection
Max polling rate
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.
Lowest price across stores, Amazon excluded.
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