Keychron K9 Pro vs MMD KM40
Get the MMD KM40 for the 2,000 mAh battery.
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5.0 (1)5.0 · 1 reviews
from$67at Keychron
5.0 (4)5.0 · 4 reviews
from$84at MonacoKeys
Which one should you get?
Get the
Keychron K9 Pro
Build quality in the top 15% of 60% boards under $100.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
- Compact layout only. No function row, dedicated arrow keys, or numpad.
Get the
MMD KM40
Battery
Build quality in the top 10% of 40% boards under $150.
- Compact layout only. No function row, dedicated arrow keys, or numpad.
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 K9 Pro
MMD KM40
Layout size
60%
40%
Connection
Bluetooth, Wired
Bluetooth, 2.4 GHz, Wired
Wireless for several devices and wired for lower latency
Battery
1,550 mAh
2,000 mAh
A larger battery means fewer cables during the day
Low profile
Yes
No
Case material
ABS, Aluminum, Plastic
Aluminum
- Keychron K9 Pro
- MMD KM40
- Performance
- 7560
- Build quality
- 8082
- Productivity
- 7469
- Customizability
- 8983
- Portability
- 8684
- Hot-swappable
- QMK
- VIA
- Keycaps: PBT
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Keychron K9 Pro
1 owner reviews
“This keyboard is thin, light, and has a small footprint, making it suitable for carrying around a bit, such as between one's seat and a conference room. The keyswitches used on this keyboard are also compatible with nuphy models, allowing for customization. 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”
Keychron K9 Pro vs MMD KM40 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
14 of 26 specs differ
Keychron K9 Pro
MMD KM40
Switch options
Hot-swappable
Mount style
Low profile
Sound dampening
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.
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Lowest price across stores, Amazon excluded.
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