Sensy Supernova SonoShell vs MMD KM40
Get the Sensy Supernova SonoShell for hall effect. Get the MMD KM40 for qmk.
![[Group Buy] Supernova 60% SonoShell Keyboard Kit by Sensy](https://cdn.shopify.com/s/files/1/1674/0405/files/20260816221707_64_363.png?v=1787026609&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.
Sensy Supernova SonoShell
MMD KM40
Layout size
60%
40%
Hall effect (magnetic)
Yes
No
Case material
Aluminum, Polycarbonate
Aluminum
Switch options
Magnetic
Linear, Tactile
QMK
No
Yes
- Sensy Supernova SonoShell
- MMD KM40
- Performance
- 5161
- Build quality
- 5983
- Productivity
- 5169
- Customizability
- 5784
- Portability
- 6684
- Hot-swappable
- Sound dampening
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Sensy Supernova SonoShell
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”
Sensy Supernova SonoShell vs MMD KM40 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
9 of 22 specs differ
Sensy Supernova SonoShell
MMD KM40
Switch options
Hall effect (magnetic)
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Display
Connection
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
QMK
VIA
Released
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.
Not sold on either?
Still torn?
Answer a few quick questions and the keyboard finder ranks 2,000+ boards by how you will actually use yours.