Jamesdonkey RS2 4.0 vs Yunzii IF99
Get the Jamesdonkey RS2 4.0 for knob. Get the Yunzii IF99 for the 8,000 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.
Jamesdonkey RS2 4.0
Yunzii IF99
Layout size
96%
95%
Battery
4,000 mAh
8,000 mAh
Knob
Yes
No
Display
None
Yes
Weight
1,150 g
1,238.5 g
- Jamesdonkey RS2 4.0
- Yunzii IF99
- Performance
- 5882
- Build quality
- 7180
- Productivity
- 9389
- Customizability
- 8289
- Portability
- 5363
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Switch options: Linear
- Mount style: Gasket Mount
- QMK
- Sound dampening
Jamesdonkey RS2 4.0 vs Yunzii IF99 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
11 of 24 specs differ
Jamesdonkey RS2 4.0
Yunzii IF99
Switch options
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Knob
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case material
Keycaps
Weight
Dimensions
Backlight
QMK
VIA
N-key rollover
Mac & Windows
Released
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