Head to head · Prices checked Oct 28, 2026

Redragon CASTOR K631 HE vs Keychron K6 Pro

Get the Redragon CASTOR K631 HE for hall effect and rapid trigger. Get the Keychron K6 Pro for hot-swappable.

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CASTOR K631 HE Rapid Trigger Gaming Keyboard

Hall effect

Redragon CASTOR K631 HE

No reviews

from$39at Redragon

Compare 2 stores

Hot-swappable

Keychron K6 Pro

4.4 · 8 reviews

from$67at Keychron

Compare 4 stores

Quick verdict

Which one should you get?

Get the

Redragon CASTOR K631 HE

Hall effect

Build quality in the bottom 10% of 65% boards under $100.

Rules this board out

Magnetic switches only. Standard MX switches will not fit.
No ISO layout. ISO-DE, UK, and other ISO variants are not offered.

$39 at Redragon

Get the

Keychron K6 Pro

Hot-swappable

Build quality in the top 5% of 65% boards under $100.

Rules this board out

South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.

$67 at Keychron

What actually differs

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 HE

Keychron K6 Pro

Hall effect (magnetic)
Yes
No
Adjustable actuation helps in games and not in normal typing
Rapid trigger
Yes
No
Faster resets help in games and not in normal typing
Connection
Wired
Bluetooth, Wired
Wireless for several devices and wired for lower latency
Hot-swappable
No
Yes
Switch changes without soldering
Max polling rate
8,000 Hz
1,000 Hz
Higher polling helps competitive FPS and does nothing for typing

KeebFinder scores

How we score

Redragon CASTOR K631 HE
Keychron K6 Pro

Performance: 92
74
Build quality: 43
89
Productivity: 48
91
Customizability: 47
96
Portability: 66
88

What they share

Layout size: 65%

See every spec side by side

Full specs

Redragon CASTOR K631 HE vs Keychron K6 Pro specs

Every tracked spec, side by side. Rows marked with a dot differ between the boards.

19 of 28 specs differ

Spec

Redragon CASTOR K631 HE

Keychron K6 Pro

Typing & switches

Switch options

Magnetic

Clicky, Linear, Tactile

Hall effect (magnetic)

Yes

Rapid trigger

Yes

Hot-swappable

Yes

Mount style

—

PCB Mount, Tray Mount

Sound dampening

Yes

Screw-in stabilizers

Yes

Layout

Layout size

65%

Layout standard

ANSI

ANSI, ISO, ISO-DE, ISO-ES, ISO-FR, ISO-SW, ISO-UK, JIS

Ergonomics

Standard

Display

None

Media keys

Yes

Connectivity & battery

Connection

Wired

Bluetooth, Wired

Max polling rate

8,000 HzBetter

1,000 Hz

Battery

Wired only

4,000 mAh

USB-C

Yes

Build & materials

Case material

Plastic

ABS, Aluminum, Plastic

Plate material

—

Steel

Keycaps

—

ABS, PBT

Weight

638 g

890 g

Dimensions

33 x 323 x 107 mm

27 x 317 x 107 mm

Typing angle

—

4°, 6°

Backlight

RGB

RGB, south-facing

Firmware & software

QMK

Yes

VIA

Yes

N-key rollover

Yes

Mac & Windows

Yes

Extras

Released

2026

2022

For EU buyers

ISO layouts by store

Which stores sell ISO-DE, UK, and the other regional layouts.

Redragon CASTOR K631 HE

No ISO layout at the stores we track.

Keychron K6 Pro

Keychron
ISO-DE, ISO-UK, ISO-FR, ISO-ES, ISO-SW
In stockShips to you
Keychron (DE)
ISO-DE, ISO-UK, ISO-FR, ISO-ES, ISO-SW
In stockDoes not ship to you

Where to buy

Compare prices

Live prices from the stores we track, cheapest in-stock offer first.

Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.

Lowest price across stores, Amazon excluded.

Redragon CASTOR K631 HE2 stores