MMD KM40 vs NIUNIU Roly poly 40 R3
Get the MMD KM40 for qmk and via.
![[Pre-Order] STAGGERED Roly-poly 40 R3 Keyboard Kit by Niuniu](https://cdn.shopify.com/s/files/1/1674/0405/files/lqGJ5CU1q_XZzAS-6G7bu3QqWXvt.JPG-large1400.png?v=1745233035&width=3840&quality=75)
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.
MMD KM40
NIUNIU Roly poly 40 R3
Switch options
Linear, Tactile
Linear
Mount style
Gasket Mount
Top Mount
QMK
Yes
No
VIA
Yes
No
Sound dampening
Yes
No
- MMD KM40
- NIUNIU Roly poly 40 R3
- Performance
- 6147
- Build quality
- 8375
- Productivity
- 6951
- Customizability
- 8470
- Portability
- 8480
- Layout size: 40%
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Case material: Aluminum
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
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”
NIUNIU Roly poly 40 R3
No owner reviews collected yet.
MMD KM40 vs NIUNIU Roly poly 40 R3 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
10 of 21 specs differ
MMD KM40
NIUNIU Roly poly 40 R3
Switch options
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Display
Connection
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Typing angle
Backlight
QMK
VIA
VIAL
Released
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
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![[Pre-Order] ORTHO Roly-poly 40 R3 Keyboard Kit by Niuniu](https://cdn.shopify.com/s/files/1/1674/0405/files/42A5DCDF6CC2BFFDC11E43D62A22AC4B_56e3ae27-1b5a-4910-8d50-059f522426b7.jpg?v=1745208295&width=3840&quality=75)
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