Redragon CASTOR K631 Pro vs CASTOR K631 Pro SEDetachable Strap vs Translucent Base
Choose the K631 Pro for its lower price and detachable strap, or the K631 Pro SE for its translucent base and dual-USB cable.
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Which one should you get?
Get the
Redragon CASTOR K631 Pro
Detachable Strap
Build quality in the bottom 35% of 65% boards under $50.
- Includes a detachable portable strap for easier carrying.
- Generally available at a lower price point.
- Comes with a keycap and switch puller combo tool.
Get the
Redragon CASTOR K631 Pro SE
Translucent Base
Build quality in the bottom 25% of 65% boards under $100.
- Features a translucent base designed to enhance RGB lighting effects.
- Includes a 2-in-1 USB cable with both USB-C and USB-A connectors.
- Packaging lists separate keycap and switch pullers.
For most buyers, the standard Redragon K631 Pro offers the best value, providing all core features at a lower cost. Only choose the K631 Pro SE if its specific aesthetic upgrade with the translucent base and the convenience of the dual-USB cable are worth the premium and you can find it in stock. The performance and modding potential are otherwise equivalent.
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 Pro
Redragon CASTOR K631 Pro SE
Switch options
Linear
Clicky, Linear
Released
2026
2023
- Redragon CASTOR K631 Pro
- Redragon CASTOR K631 Pro SE
- Performance
- 7271
- Build quality
- 5651
- Productivity
- 5449
- Customizability
- 5856
- Portability
- 8583
- Layout size: 65%
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Battery: 1,600 mAh
- Case material: Plastic
- Mount style: Bottom Mount
What will you mostly use it for?
The K631 Pro holds an edge for office and travel due to its lower cost and included strap. The K631 Pro SE is better suited for modding and content creation, thanks to its translucent base and dual-USB cable. For gaming and programming, the keyboards are functionally identical, making the choice purely about accessory preference.
It's a tie
- Both offer identical tri-mode connectivity with USB-C, Bluetooth, and 2.4GHz wireless.
- Both feature N-key rollover and hot-swappable PCBs for switch customization.
- Both are listed by the manufacturer as dedicated for FPS gaming.
Redragon CASTOR K631 Pro vs CASTOR K631 Pro SE specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
2 of 17 specs differ
Redragon CASTOR K631 Pro
Redragon CASTOR K631 Pro SE
Switch options
Hot-swappable
Mount style
Layout size
Layout standard
Ergonomics
Display
Connection
Battery
USB-C
Case material
Keycaps
Weight
Dimensions
Backlight
N-key rollover
Released
Compare prices
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Lowest price across stores, Amazon excluded.
Redragon CASTOR K631 Pro vs CASTOR K631 Pro SE: your questions
The main differences are physical. The K631 Pro SE has a translucent keyboard base and comes with a dual USB-C/USB-A cable. The standard K631 Pro has a detachable carrying strap and a standard USB-C cable.
Yes. Both the Redragon K631 Pro and K631 Pro SE feature a free-mod hot-swappable PCB. The manufacturer states the sockets are compatible with almost all 3-pin and 5-pin switches on the market.
Both keyboards support tri-mode connectivity. This includes a USB-C wired connection, Bluetooth 3.0/5.0, and a 2.4GHz wireless connection using a dongle.
Yes. Redragon lists pro software support for both models. This software allows for designing custom RGB lighting effects and creating macros for gaming or work shortcuts.
The K631 Pro comes with Custom Dragon Chant linear switches. The K631 Pro SE listing mentions custom quiet linear switches, and its metadata indicates it may also be available with clicky switches.
The K631 Pro includes the keyboard, user manual, a combined keycap & switch puller, a USB-A to USB-C cable, and a sticker. The K631 Pro SE includes similar items but lists the pullers separately and includes the dual USB-C/USB-A cable.
Both the Redragon K631 Pro and K631 Pro SE have a built-in 1600mAh rechargeable battery for wireless operation.
Redragon markets both as dedicated for FPS gamers. They feature N-key rollover for anti-ghosting, hot-swappable switches for customization, and low-latency 2.4GHz wireless, making them suitable for gaming.
Likely yes, as both use USB-C for wired connectivity. However, the standard K631 Pro does not include the dual-connector cable, so you would need to purchase it separately if desired.
They are identical in size, weight, and wireless features. The K631 Pro has a slight edge for travel due to its included detachable strap, making it easier to carry without a case.
Yes. Both models feature vibrant RGB backlighting. The manufacturer's software support allows for per-key customization, and user reviews for the SE model confirm per-key RGB is possible.
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