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Head to head · Prices checked Nov 7, 2026

Other 0xCB Static vs Redragon CASTOR K631 Pro

Get the Other 0xCB Static for knob. Get the Redragon CASTOR K631 Pro for hot-swappable.

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Quick verdict

Which one should you get?

Get the

Other 0xCB Static

Knob

Build quality in the top 30% of 40% boards under $150.

Rules this board out

  • Switches are soldered. Swapping them means soldering.
  • Compact layout only. No function row, dedicated arrow keys, or numpad.

Get the

Redragon CASTOR K631 Pro

Hot-swappable

Build quality in the bottom 35% of 65% boards under $50.

Rules this board out

  • 65% layout. No function row and no numpad.

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.

Other 0xCB Static

Redragon CASTOR K631 Pro

  • Layout size

    40%

    65%

  • Connection

    Wired

    Bluetooth, 2.4 GHz, Wired

    Wireless for several devices and wired for lower latency

  • Hot-swappable

    No

    Yes

    Switch changes without soldering

  • Case material

    Acrylic, Metal, Steel

    Plastic

  • Knob

    Yes

    No

KeebFinder scores

How we score
  • Other 0xCB Static
  • Redragon CASTOR K631 Pro
Performance
48
71
Build quality
78
56
Productivity
58
54
Customizability
77
58
Portability
62
85
See every spec side by side

Full specs

Other 0xCB Static vs Redragon CASTOR K631 Pro specs

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

11 of 22 specs differ

Other 0xCB Static

Redragon CASTOR K631 Pro

Typing & switches

Switch options

—
Linear

Hot-swappable

No
Yes

Mount style

—
Bottom Mount

Layout

Layout size

40%
65%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

OLED
None

Connectivity & battery

Connection

Wired
Bluetooth, 2.4 GHz, Wired

Battery

Wired only
1,600 mAh

USB-C

Yes
Yes

Build & materials

Case material

Acrylic, Metal, Steel
Plastic

Plate material

Aluminum, FR4
—

Keycaps

—
ABS

Weight

—
470 g

Dimensions

—
40 x 309 x 104 mm

Typing angle

6°
—

Backlight

None
RGB

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

No
Yes

Extras

Released

2025
2026

Where to buy

Compare prices

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

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Lowest price across stores, Amazon excluded.

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