Promotype Key Boy Advance 50 vs Razer BlackWidow V4 Pro
Get the Promotype Key Boy Advance 50 for hot-swappable. Get the Razer BlackWidow V4 Pro for knob.
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![[Pre-order] Key Boy Advance 50 Custom Keyboard Kit](https://cdn.shopify.com/s/files/1/0602/3639/8777/files/keyboy-advanced-1.webp?v=1782959570&width=3840&quality=75)
Which one should you get?
Get the
Razer BlackWidow V4 Pro
Knob
Build quality in the bottom 5% of 100% boards at any price.
- Switches are soldered. Swapping them means soldering.
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.
Promotype Key Boy Advance 50
Razer BlackWidow V4 Pro
Hot-swappable
Yes
No
Switch changes without soldering
Case material
Polycarbonate
ABS
Knob
No
Yes
Backlight
None
RGB
RGB for looks and low light rather than speed
Released
2026
2023
- Promotype Key Boy Advance 50
- Razer BlackWidow V4 Pro
- Performance
- 5454
- Build quality
- 4739
- Productivity
- 5448
- Customizability
- 5752
- Portability
- 4440
Promotype Key Boy Advance 50 vs Razer BlackWidow V4 Pro specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
5 of 13 specs differ
Promotype Key Boy Advance 50
Razer BlackWidow V4 Pro
Switch options
Hot-swappable
Layout size
Layout standard
Ergonomics
Knob
Display
Connection
Case material
Plate material
Keycaps
Backlight
Released
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