Keychron K4 Pro vs MMD KM40
Get the Keychron K4 Pro for the 4,000 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.
Keychron K4 Pro
MMD KM40
Layout size
96%
40%
Connection
Bluetooth, Wired
Bluetooth, 2.4 GHz, Wired
Battery
4,000 mAh
2,000 mAh
Case material
ABS, Plastic
Aluminum
Switch options
Clicky, Linear, Tactile
Linear, Tactile
- Keychron K4 Pro
- MMD KM40
- Performance
- 8161
- Build quality
- 8483
- Productivity
- 9569
- Customizability
- 9684
- Portability
- 5484
- Hot-swappable
- QMK
- VIA
- Sound dampening
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Keychron K4 Pro
7 owner reviews
“I previously had a normal K4 and i love the new one, the only thing is that the stabilizers lube work is kinda bad and the space bar was very rattly but after some lube work the K4 pro retakes the perfect productivity keyboard.”
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”
Keychron K4 Pro vs MMD KM40 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
16 of 26 specs differ
Keychron K4 Pro
MMD KM40
Switch options
Hot-swappable
Mount style
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
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.
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.