What makes the Redragon CASTOR K631 Pro keyboard unique?

The Redragon CASTOR K631 Pro stands out with its 65% layout, providing a compact design while still including essential arrow and function keys. It's also hot-swappable with a wide range of switches, allowing for easy customization without complex modifications.

How does the hot-swappable feature work on this keyboard?

The hot-swappable feature of the Redragon CASTOR K631 Pro allows you to replace switches without soldering. It supports nearly all MX style mechanical switches, offering flexibility to customize your typing experience with 3-pin or 5-pin options.

Can I use the CASTOR K631 Pro wirelessly?

Yes, the CASTOR K631 Pro offers a tri-mode connection: USB-C wired, Bluetooth 3.0/5.0, and 2.4GHz wireless. This versatility ensures you can use it in any setup, from gaming to professional work environments.

What kind of lighting options does the keyboard offer?

The Redragon CASTOR K631 Pro comes with vibrant RGB backlighting, featuring up to 20 preset modes. You can adjust brightness and flow speed directly on the keyboard, allowing you to personalize the lighting to match your style.

Is the Redragon CASTOR K631 Pro suitable for gaming?

Absolutely! It's designed with FPS gamers in mind, providing a compact layout that saves mouse space. This ensures your mouse movements are unrestricted, enhancing your gaming performance.

How does the keyboard's design benefit my workspace?

The ultra-compact and lightweight design of the CASTOR K631 Pro helps free up desk space, reducing clutter and creating a more organized workspace. Its slim profile is ideal for minimalist setups.

Are the switches on the CASTOR K631 Pro quiet?

The keyboard comes with quiet linear mechanical switches that offer soft key travel, making them ideal for environments where noise reduction is important, such as shared offices or late-night gaming sessions.

Redragon CASTOR K631 Pro Starting at $41.99

Vendor	Location	Coupon Code	In Stock	Price (USD)	Link*
Redragon CASTOR K631 Pro
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CASTOR K631 PRO (Detachable Strap Version)
	Shipping to US			$42	Visit Shop

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Redragon CASTOR K631 Pro

CASTOR K631 PRO (Detachable Strap Version)

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CASTOR K631 PRO (Detachable Strap Version)

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Compare Redragon CASTOR K631 Pro vs Epomaker Magcore65 Lite vs AULA F65 Specification

Compare similar keyboards side by side, or use the comparison table to compare all keyboards!

Model	Redragon CASTOR K631 Pro	Epomaker Magcore65 Lite	AULA F65
	63	75	70
Rating	0.0 stars (0 reviews)	4.8 stars (10 reviews)	4.6 stars (53 reviews)
Purchase Options
Main differences	Has Linear switch options Connects via USB-C Uses a Bottom Mount mounting style Equipped with a 1600 mAh battery Weighs about 470 g Sized at 40 x 309 x 104 mm Made with a Plastic case Features ABS keycaps Offers Yes, Rgb RGB lighting	Released in 2025 Has Linear, Magnetic switch options Compatible with both Mac and Windows Utilizes Hall effect sensors Runs at a 8000 Hz polling rate Weighs about 750 g Sized at 43 x 324 x 118 mm Features PBT, PC keycaps	Runs at a 1000 Hz polling rate Weighs about 800 g Sized at 44 x 116 x 325 mm
Score	Scores Performance: 71.2 Build Quality: 55.7 Productivity: 53.8 Customizability: 57.5 Portability: 84.4	Scores Performance: 89.6 Build Quality: 66.7 Productivity: 68.7 Customizability: 67.1 Portability: 86.5	Scores Performance: 58.2 Build Quality: 66.6 Productivity: 61.2 Customizability: 57.4 Portability: 82.9
Name	Name Redragon CASTOR K631 Pro	Name Epomaker Magcore65 Lite	Name AULA F65
Release year	Release year 2026	Release year 2025	Release year 2026
Switch Options	Switch Options Linear	Switch Options Linear, Magnetic	Switch Options -
Profile	Profile Normal Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 65%	Layout Size 65%	Layout Size 65%
Layout Standard	Layout Standard ANSI	Layout Standard ANSI	Layout Standard ANSI
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Normal	Layout Ergonomics Normal
Knob Support	Knob Support	Knob Support	Knob Support
Display Support	Display Support	Display Support	Display Support
Mac/Win Support	Mac/Win Support	Mac/Win Support	Mac/Win Support
Multi-Media Keys	Multi-Media Keys	Multi-Media Keys	Multi-Media Keys
USB-C	USB-C	USB-C	USB-C
USB passthrough	USB passthrough	USB passthrough	USB passthrough
Connection	Connection Bluetooth, 2.4 GHz, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate -	Polling Rate 8000 Hz	Polling Rate 1000 Hz
Battery capacity	Battery capacity 1600 mAh	Battery capacity 4000 mAh	Battery capacity 4000 mAh
Hall Effect Support	Hall Effect Support	Hall Effect Support	Hall Effect Support
QMK Support	QMK Support	QMK Support	QMK Support
VIA Support	VIA Support	VIA Support	VIA Support
VIAL Support	VIAL Support	VIAL Support	VIAL Support
N-Key Rollover	N-Key Rollover	N-Key Rollover	N-Key Rollover
Rapid Trigger	Rapid Trigger	Rapid Trigger	Rapid Trigger
Mount Style	Mount Style Bottom Mount	Mount Style Gasket Mount	Mount Style Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb	Backlight Rgb, South-face	Backlight Rgb, South-face
Case Colors	Case Colors	Case Colors	Case Colors
Case Material	Case Material Plastic	Case Material ABS	Case Material ABS
Keycaps Material	Keycaps Material ABS	Keycaps Material PBT, PC	Keycaps Material -
Dimensions	Dimensions 40 x 309 x 104 mm	Dimensions 43 x 324 x 118 mm	Dimensions 44 x 116 x 325 mm
Weight	Weight 470g	Weight 750g	Weight 800g

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Product Description

The Redragon CASTOR K631 Pro is a compact 65% mechanical keyboard designed for users who want a small footprint without sacrificing arrow keys and some function keys. It suits gamers and hobbyists who value wireless flexibility, easy switch customization, and a straightforward layout that saves desk space. Its hot-swappable sockets allow quick switch changes without soldering, making it a good fit for users who like to modify their typing experience.

Key Features

65% layout with 68 keys includes dedicated arrow keys and extra function keys, balancing compactness with usability.
Hot-swappable sockets support nearly all MX-style switches, including 3-pin and 5-pin variants, enabling easy switch replacement or upgrades.
Multiple connectivity options: USB-C wired, Bluetooth 3.0/5.0, and 2.4 GHz wireless, offering flexibility for different setups and devices.
Onboard RGB lighting with 20 preset modes and adjustable brightness and speed, allowing visual customization without software.

Typing Experience

The keyboard uses quiet linear Red switches with soft key travel, resulting in a smooth and low-noise typing feel. The hot-swap design reduces switch wobble, which can improve consistency and durability. Users can easily swap switches to tailor the sound and feel without technical knowledge.

Connectivity

Tri-mode connection supports wired USB-C for stable, low-latency use, and wireless modes via Bluetooth 3.0/5.0 or 2.4 GHz for cable-free convenience. This versatility suits users who switch between desktop and mobile devices or prefer a clean desk setup. Specific latency or battery life details are unknown.

Trade-offs

The compact 65% layout omits a number pad and some dedicated keys, which may be less ideal for users needing full-size layouts or extensive key availability.
Switches are linear and quiet by default, which may not satisfy users who prefer tactile or clicky feedback.
Software customization options are limited since lighting and modes are controlled onboard, restricting deeper remapping or macro programming.

Frequently Asked Questions (FAQ)