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CASTOR K631 65% Wired RGB Gaming Keyboard

Redragon CASTOR K631 Mechanical Keyboard

The Redragon CASTOR K631 is a compact wired mechanical keyboard with a 65% layout that includes dedicated arrow keys and extra function keys. It suits users who want to save desk space while retaining essential navigation keys. Its hot-swappable design appeals to hobbyists who like to customize or replace switches without soldering. The keyboard is suitable for both work and casual gaming, especially for those who prefer a quieter, linear typing experience.</p... Read more
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CASTOR K631 Grey 65% Wired RGB Gaming Keyboard

Redragon
Redragon
Ships to US
$41
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CASTOR K631 65% Wired RGB Gaming Keyboard

Redragon
Redragon
Ships to US
$38

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Compare Redragon CASTOR K631 vs Redragon CASTOR K631 Pro vs Qwertykeys Neo60 Core Specification

Compare similar keyboards side by side, or use the comparison table to compare all keyboards!
Redragon CASTOR K631Redragon CASTOR K631 ProQwertykeys Neo60 Core
CASTOR K631 65% Wired RGB Gaming Keyboard
CASTOR K631 PRO Full-Transparent Mechanical Keyboard
74
Qwertykeys Neo60 Core Keyboard
0.0 (0)
0.0 (0)
5.0 (12)
  • Supports Wired, Wired only connectivity
  • Weighs about 430 g
  • Equipped with a 1600 mAh battery
  • Weighs about 470 g
  • Sized at 40 x 309 x 104 mm
  • Released in 2025
  • Available in a 60% layout
  • Built with the ANSI, ISO layout standard
  • Supports VIA configuration
  • Uses a PCB Mount mounting style
  • Equipped with a 2200 mAh battery
  • Weighs about 1500 g
  • Sized at 18 x 293 x 109 mm
  • Made with a Aluminum case
  • Offers No RGB lighting
Scores
  • Performance: 71.1
  • Build Quality: 56.3
  • Productivity: 53.8
  • Customizability: 59.7
  • Portability: 71.6
Scores
  • Performance: 70.4
  • Build Quality: 55.7
  • Productivity: 53
  • Customizability: 58.2
  • Portability: 84.9
Scores
  • Performance: 56
  • Build Quality: 79.2
  • Productivity: 58.5
  • Customizability: 73.2
  • Portability: 86.8
Name
Redragon CASTOR K631
Name
Redragon CASTOR K631 Pro
Name
Qwertykeys Neo60 Core
Release year
2022
Release year
2022
Release year
2025
Switch Options
Linear
Switch Options
Linear
Switch Options
-
Profile
Normal Profile
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Hot Swappable
 
Layout Size
65%
Layout Size
65%
Layout Size
60%
Layout Standard
ANSI
Layout Standard
ANSI
Layout Standard
ANSI, ISO
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
USB passthrough
 
Connection
Wired, Wired only
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
-
Polling Rate
-
Polling Rate
-
Battery capacity
-
Battery capacity
1600 mAh
Battery capacity
2200 mAh
Hall Effect Support
 
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
Bottom Mount
Mount Style
Bottom Mount
Mount Style
PCB Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb
Backlight
 
Rgb
Backlight
 
Case Colors
Case Colors
Case Colors
Case Material
Plastic
Case Material
Plastic
Case Material
Aluminum
Keycaps Material
ABS
Keycaps Material
ABS
Keycaps Material
-
Dimensions
-
Dimensions
40 x 309 x 104 mm
Dimensions
18 x 293 x 109 mm
Weight
430g
Weight
470g
Weight
1500g
*Something incorrect or missing? Please
let me know
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Product Description

The Redragon CASTOR K631 is a compact wired mechanical keyboard with a 65% layout that includes dedicated arrow keys and extra function keys. It suits users who want to save desk space while retaining essential navigation keys. Its hot-swappable design appeals to hobbyists who like to customize or replace switches without soldering. The keyboard is suitable for both work and casual gaming, especially for those who prefer a quieter, linear typing experience.

Key Features

  • 68 keys with a 65% layout that balances compactness and functionality by including arrow and function keys.
  • Hot-swappable sockets compatible with most MX-style mechanical switches, allowing easy switch replacement or customization.
  • Quiet linear red switches with soft key travel, providing a smooth and less noisy typing feel.
  • RGB backlighting with up to 20 preset modes, adjustable brightness, and speed, plus software support for custom lighting and macros.
  • Dual USB-C and USB-A wired connectivity options for flexible device compatibility.

Typing Experience

The keyboard uses quiet linear switches that reduce noise and offer smooth keypresses, making it suitable for office environments or shared spaces. The soft key travel helps reduce finger fatigue during extended use. Hot-swappable sockets enable users to try different switch types or replace worn switches without technical hassle.

Connectivity

The wired connection uses a combined USB-C and USB-A cable, which increases compatibility with various devices without needing adapters. This setup ensures a stable connection but limits mobility compared to wireless options.

Trade-offs

  • The 65% layout, while compact, may be less ideal for users who frequently use a full number pad or require extensive key clusters.
  • Wired-only connectivity restricts flexibility for users who prefer wireless setups.
  • Switches are basic linear reds, which may not satisfy users seeking tactile or clicky feedback.

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