Jamesdonkey R4 vs Sikakeyb Castle CK75
Get the Jamesdonkey R4 for hot-swappable. Get the Sikakeyb Castle CK75 for hall effect and rapid trigger.
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Which one should you get?
Get the
Jamesdonkey R4
Hot-swappable
Build quality in the bottom 50% of 75% boards under $200.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
Get the
Sikakeyb Castle CK75
Hall effect
Build quality in the bottom 10% of 75% boards under $200.
- Magnetic switches only. Standard MX switches will not fit.
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 R4
Sikakeyb Castle CK75
Hall effect (magnetic)
No
Yes
Adjustable actuation helps in games and not in normal typing
Rapid trigger
No
Yes
Faster resets help in games and not in normal typing
Connection
Bluetooth, 2.4 GHz, Wired
Wired
Wireless for several devices and wired for lower latency
Hot-swappable
Yes
No
Switch changes without soldering
Case material
Aluminum
ABS
- Jamesdonkey R4
- Sikakeyb Castle CK75
- Performance
- 5488
- Build quality
- 6742
- Productivity
- 6356
- Customizability
- 7946
- Portability
- 7761
- Layout size: 75%
- Mount style: Gasket Mount
- Keycaps: PBT
Jamesdonkey R4 vs Sikakeyb Castle CK75 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
13 of 23 specs differ
Jamesdonkey R4
Sikakeyb Castle CK75
Switch options
Hall effect (magnetic)
Rapid trigger
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
Released
Compare prices
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Lowest price across stores, Amazon excluded.
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