Not sure which keyboard to choose? Try the Keyboard Finder now!

Head to head · Prices checked Nov 7, 2026

Redragon CASTOR K631 Pro vs Leobog Hi75C Pro

Get the Leobog Hi75C Pro for the 4,000 mAh battery and knob.

KeebFinder may earn a commission when you buy through these links, at no extra cost to you.

Quick verdict

Which one should you get?

Get the

Redragon CASTOR K631 Pro

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

Rules this board out

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

Get the

Leobog Hi75C Pro

Battery

Build quality in the top 25% of 75% boards under $100.

Rules this board out

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

Redragon CASTOR K631 Pro

Leobog Hi75C Pro

  • Layout size

    65%

    75%

  • Battery

    1,600 mAh

    4,000 mAh

    A larger battery means fewer cables during the day

  • Case material

    Plastic

    Aluminum

  • Mount style

    Bottom Mount

    Gasket Mount

  • Knob

    No

    Yes

KeebFinder scores

How we score
  • Redragon CASTOR K631 Pro
  • Leobog Hi75C Pro
Performance
71
78
Build quality
56
76
Productivity
54
82
Customizability
58
77
Portability
85
79

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Switch options: Linear
See every spec side by side

Full specs

Redragon CASTOR K631 Pro vs Leobog Hi75C Pro specs

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

11 of 20 specs differ

Redragon CASTOR K631 Pro

Leobog Hi75C Pro

Typing & switches

Switch options

Linear
Linear

Hot-swappable

Yes
Yes

Mount style

Bottom Mount
Gasket Mount

Sound dampening

No
Yes

Layout

Layout size

65%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, 2.4 GHz, Wired

Battery

1,600 mAh
4,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

Plastic
Aluminum

Keycaps

ABS
—

Weight

470 g
1,230 g

Dimensions

40 x 309 x 104 mm
45 x 135 x 330 mm

Backlight

RGB
RGB, south-facing

Firmware & software

N-key rollover

Yes
Yes

Mac & Windows

No
Yes

Extras

Released

2026
2023

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.

Still torn?

Answer a few quick questions and the keyboard finder ranks 2,000+ boards by how you will actually use yours.