Name: Redragon CASTOR K631 Full-Transparent Mechanical Keyboard
Brand: Redragon

Summary

A budget 65% tri-mode wireless mechanical keyboard with a see-through chassis and hot-swappable switches. Check the fine print before you buy: battery life in hours is never published, and the only owner feedback is ten five-star reviews on Redragon’s own store page.

Strengths

Hot-swappable 3-pin/5-pin sockets with a claimed 99.8%+ switch compatibility.
Up to 20 RGB presets plus music-sync mode, adjustable on the keyboard.
Transparent chassis with a distinctive look praised by store reviewers.
N-key rollover and 100% anti-ghosting for gaming.
Includes keycap and switch pullers plus four spare red switches.

Weaknesses

No independent instrumented review of this exact model exists.
Battery life in hours and charge time are never published.
Owner evidence is ten five-star reviews on Redragon’s own store page only.
Weight figure conflicts: 0.43 kg in the Design section vs 0.47 kg in the comparison table.
The manual does not clarify whether the included four red switches are spares or an alternate set.
Warranty excludes consumables and physical damage; no official spare-parts catalog found.

Verified specifications

Model	K631 PRO (CASTOR K631 PRO Full-Transparent Mechanical Keyboard).
Layout	65%, 68 keys, US QWERTY.
Switches	translucent custom linear switch; 42 ± 5 gf operation force, 1.5 mm actuation, 3.6 mm total travel, 50 million keystroke rated life; “gentle” sound level.
Hot-swap	3-pin and 5-pin sockets; claimed 99.8%+ switch compatibility (manufacturer claim, unverified).
Connectivity	USB-C wired, Bluetooth 3.0 and 5.0, 2.4 GHz wireless (tri-mode).
Backlighting	up to 20 preset RGB modes plus music-sync mode; brightness and flow speed adjustable on the keyboard.
N-key rollover / 100% anti-ghosting.
Keycap profile	OEM.
Battery	1600 mAh, charged over USB-C.
Cable	6 ft / 1.8 m USB-A to USB-C.
Height adjustable	yes.
Software	pro software for macros and custom modes (free download).
OS support	Windows XP through Windows 11.
Macros	6 recordable macro keys (G1-G6).
Weight	0.43 kg (Design section) or 0.47 kg (comparison table); unresolved.
Wrist rest	none.
In the box	keyboard, user manual, keycap puller, switch puller, USB-A/C cable, Redragon sticker, 4 red switches.
Warranty	18 months from purchase for electrical-circuit failures; excludes physical damage, improper voltage and consumables.
Dimensions	12.2 × 4.1 in (no height published).

Full research notes and sources

Build and feel

The K631 PRO Full-Transparent uses a translucent custom linear switch rated at 42 ± 5 gf with 1.5 mm actuation and 3.6 mm total travel, rated for 50 million keystrokes. The keycap profile is OEM and the case has no wrist rest. Weight is either 0.43 kg or 0.47 kg depending on which part of the store page you read; Redragon does not resolve the difference. The package includes keycap and switch pullers, a USB-A/C cable, a sticker and four red switches whose purpose the manual does not explain.

Connectivity and software

Tri-mode means USB-C wired, Bluetooth 3.0 and 5.0 and 2.4 GHz wireless. Owners report it works well with Steam Deck and PC across all three modes, with easy pairing. Pro software supports macros and custom modes, and the manual documents six recordable macro keys (G1-G6) triggered with FN2. The keyboard supports Windows XP through Windows 11. There is no published wireless polling rate or measured key latency.

Evidence and reliability

No independent review of this exact model was found on RTINGS, Tom’s Guide, TechRadar, PC Gamer or CNET, and a Deskthority forum search returned no thread specifically about the full-transparent variant. The only owner feedback is ten five-star reviews on Redragon’s own store page, which praise Steam Deck and PC compatibility, the transparent look, hot-swap support, easy pairing and sound. Those are positive signals but not independent testing, and no durability or defect-rate data exist. The 99.8%+ hot-swap compatibility figure is a manufacturer claim with no independent verification.

Is it worth it?

At $54.99 on redragonshop.com (2026-10-26), the K631 PRO Full-Transparent offers tri-mode wireless, hot-swap sockets, 20 RGB presets and a distinctive transparent design at a low price. The main caveat is the absence of independent test data and the manufacturer-only review pool. Value is strongest for buyers wanting the transparent aesthetic and wireless flexibility; buyers prioritizing verified switch quality or long-term durability data have limited evidence.

Which model this is

This page covers the Redragon CASTOR K631 PRO Full-Transparent Mechanical Keyboard, model K631 PRO, 65% 68-key US QWERTY. It is sold in Black and White; White ships to the US, EU and AU only, and Black ships to the US and EU only. Do not confuse it with the wired CASTOR K631 Grey, the wired K631 Castor, K631 PRO SE, K631 PRO Mint or the K631 HE rapid-trigger variant. The store page title reads “K631 PRO 65% 3-Mode Wireless Full-Transparent Gaming Keyboard” while the product heading reads “CASTOR K631 PRO Full-Transparent Mechanical Keyboard”.