Redragon CASTOR K631 vs FIZZ K617
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Which one should you get?
Get the
Redragon CASTOR K631
Build quality in the bottom 35% of 65% boards under $50.
- No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
- 65% layout. No function row and no numpad.
Get the
Redragon FIZZ K617
Build quality in the top 45% of 60% boards under $50.
- 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.
Redragon CASTOR K631
Redragon FIZZ K617
Layout size
65%
60%
Switch options
Linear
Clicky, Linear
Display
None
LED
A case display rather than a typing feature
Weight
430 g
590 g
Heavier boards stay planted and lighter ones travel
Layout standard
ANSI
ANSI, ISO, ISO-DE, ISO-ES, ISO-FR, ISO-IT, ISO-UK, JIS
ISO and JIS exist so regional layouts fit
- Redragon CASTOR K631
- Redragon FIZZ K617
- Performance
- 7170
- Build quality
- 5761
- Productivity
- 5553
- Customizability
- 6167
- Portability
- 7270
- Connection: Wired
- Hot-swappable
- Case material: Plastic
- Mount style: Bottom Mount
Redragon CASTOR K631 vs FIZZ K617 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
6 of 17 specs differ
Redragon CASTOR K631
Redragon FIZZ K617
Switch options
Hot-swappable
Mount style
Layout size
Layout standard
Ergonomics
Display
Connection
Max polling rate
USB-C
Case material
Keycaps
Weight
Dimensions
Backlight
N-key rollover
Released
ISO layouts by store
Which stores sell ISO-DE, UK, and the other regional layouts.
Redragon CASTOR K631
No ISO layout at the stores we track.
Redragon FIZZ K617
Redragon
ISO-UK
In stockShips to you
Redragon
ISO-FR
In stockShips to you
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.
Lowest price across stores, Amazon excluded.
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