Redragon CASTOR K631 vs FIZZ K617DEArrow Keys or 60%
Choose the CASTOR K631 for dedicated arrow keys and a roomier 65% layout, or the FIZZ K617DE for a 60% footprint and its listed 1000 Hz polling rate.
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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.
- 65% layout with dedicated arrow keys and extra function keys.
- Vendor-described RGB music sync mode, with brightness and flow speed adjustable onboard.
- 65% layout. No function row and no numpad.
Get the
Redragon FIZZ K617DE
Build quality in the bottom 35% of 60% boards under $50.
- Listed 1000 Hz polling rate.
- 60% layout with listed dimensions of 292 x 99 x 36 mm.
- Compact layout only. No function row, dedicated arrow keys, or numpad.
Get the CASTOR K631 for dedicated arrow keys, extra function keys, and its vendor-described onboard lighting controls. Get the FIZZ K617DE for a 60% layout, listed dimensions, and a specified 1000 Hz polling rate. Both make sense for buyers seeking a wired, hot-swappable Redragon keyboard, but the layout difference should guide the choice.
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 K617DE
Layout size
65%
60%
Released
2023
2025
- Redragon CASTOR K631
- Redragon FIZZ K617DE
- Performance
- 7172
- Build quality
- 5757
- Productivity
- 5556
- Customizability
- 6163
- Portability
- 7272
- Connection: Wired
- Hot-swappable
- Case material: Plastic
- Mount style: Bottom Mount
- Weight: 430 g
What will you mostly use it for?
The CASTOR K631 has the clearer edge for office work, programming, and directional editing because its layout includes dedicated arrow keys and extra function keys. The FIZZ K617DE is the more compact choice for travel, with listed dimensions that buyers can compare against their bag or workspace. Gaming and switch modification are close calls, since both are wired, hot-swappable, and offer N-key rollover. The FIZZ’s listed polling rate and the CASTOR’s extra keys are the key gaming trade-offs.
It's a tie
- Both listings specify wired connectivity, hot-swappable switches, and N-key rollover.
- The CASTOR vendor description highlights dedicated arrow keys and an FPS-focused layout.
- The FIZZ listing specifies a 1000 Hz polling rate and a compact 60% layout.
Redragon CASTOR K631 vs FIZZ K617DE specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
2 of 17 specs differ
Redragon CASTOR K631
Redragon FIZZ K617DE
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
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Redragon CASTOR K631 vs FIZZ K617DE: your questions
The CASTOR K631 is a 65% keyboard with dedicated arrow keys and extra function keys described by Redragon. The FIZZ K617DE is a 60% layout, and its compatibility note says it has no dedicated arrow keys or function row.
Yes. Redragon describes the CASTOR K631 as having dedicated arrow keys in its 65% layout. The product listing also identifies it as a 65% keyboard.
The FIZZ K617DE compatibility note specifies that its compact layout has no dedicated arrow keys. Buyers who want dedicated arrows should consider the CASTOR K631, which Redragon describes as having them.
The FIZZ K617DE listing specifies a 1000 Hz polling rate. No polling-rate figure is listed for the CASTOR K631, so a direct numeric comparison is not available.
Both keyboards are listed as hot-swappable. Redragon describes both boards’ sockets as compatible with 3-pin and 5-pin switches.
The FIZZ K617DE is the 60% model, while the CASTOR K631 is 65%. The FIZZ listing gives dimensions of 292 x 99 x 36 mm.
Both product listings specify wired-only connectivity. The vendor descriptions identify USB-C connections for both keyboards.
Both are listed with RGB lighting. Redragon describes up to 20 preset lighting modes and an onboard music sync mode for the CASTOR, and up to 22 preset modes for the FIZZ.
The CASTOR K631 is the more direct fit if you want dedicated arrow keys and extra function keys in the layout. Redragon also describes software macros, keybindings, and shortcuts for the CASTOR.
Both listings specify wired connectivity, hot-swappable switches, and N-key rollover. The FIZZ listing gives a 1000 Hz polling rate, while Redragon describes the CASTOR as having dedicated arrow keys and an FPS-focused layout.
Yes, both product listings give a weight of 430g. The FIZZ vendor description also lists dimensions of 292 x 99 x 36 mm.
Choose the CASTOR K631 if dedicated arrow keys matter, since Redragon explicitly lists them as a feature. The FIZZ K617DE’s compact-layout compatibility note says it does not have dedicated arrow keys.
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