NPK Club RO75 vs Jamesdonkey A3
Get the NPK Club RO75 for hall effect and the 6,000 mAh battery. Get the Jamesdonkey A3 for knob.
![[In Stock] RO75 75% Pre-Built Aluminum Mechanical Keyboard](https://cdn.shopify.com/s/files/1/0549/0262/0278/files/RO75-2.477.jpg?v=1744771062&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.
NPK Club RO75
Jamesdonkey A3
Hall effect (magnetic)
Yes
No
Battery
6,000 mAh
3,000 mAh
Case material
Aluminum
ABS, PBT, Plastic, Polycarbonate
Switch options
Linear, Magnetic
Clicky, Linear, Tactile
Knob
No
Yes
- NPK Club RO75
- Jamesdonkey A3
- Performance
- 8662
- Build quality
- 8366
- Productivity
- 8991
- Customizability
- 8685
- Portability
- 9279
- Layout size: 75%
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Mount style: Gasket Mount
- Sound dampening
NPK Club RO75 vs Jamesdonkey A3 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
13 of 28 specs differ
NPK Club RO75
Jamesdonkey A3
Switch options
Hall effect (magnetic)
Hot-swappable
Mount style
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Knob
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
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Not sold on either?
![[In Stock] RO75 pro 75% Pre-Built Aluminum Mechanical Keyboard](https://cdn.shopify.com/s/files/1/0549/0262/0278/files/4_872d9b56-26d2-48d7-96d8-c8b1e42ab938.jpg?v=1766117507&width=3840&quality=75)
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