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Head to head · Prices checked Nov 11, 2026

Royal Kludge M75 vs Coolkiller CK75 SE

Get the Royal Kludge M75 for knob. Get the Coolkiller CK75 SE for the 4,000 mAh battery and sound dampening.

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Quick verdict

Which one should you get?

Get the

Royal Kludge M75

Knob

Build quality in the top 50% 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.

Get the

Coolkiller CK75 SE

Battery

Build quality in the top 50% 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.

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.

Royal Kludge M75

Coolkiller CK75 SE

  • Battery

    3,750 mAh

    4,000 mAh

    A larger battery means fewer cables during the day

  • Knob

    Yes

    No

  • Display

    OLED

    LED

    A case display rather than a typing feature

  • Weight

    900 g

    1,000 g

    Heavier boards stay planted and lighter ones travel

  • Sound dampening

    No

    Yes

KeebFinder scores

How we score
  • Royal Kludge M75
  • Coolkiller CK75 SE
Performance
66
75
Build quality
66
66
Productivity
73
77
Customizability
74
67
Portability
80
80

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Mount style: Gasket Mount
See every spec side by side

Full specs

Royal Kludge M75 vs Coolkiller CK75 SE specs

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

10 of 23 specs differ

Royal Kludge M75

Coolkiller CK75 SE

Typing & switches

Switch options

Clicky, Linear
—

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

No
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

OLED
LED

Connectivity & battery

Connection

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

Max polling rate

—
1,000 Hz

Battery

3,750 mAh
4,000 mAhBetter

USB passthrough

Yes
No

USB-C

Yes
Yes

Build & materials

Case material

—
Plastic

Plate material

—
Polycarbonate

Keycaps

PBT
PBT, PC

Weight

900 g
1,000 g

Dimensions

42 x 328 x 139 mm
40 x 326 x 139 mm

Backlight

RGB, south-facing
RGB, south-facing

Firmware & software

N-key rollover

No
Yes

Mac & Windows

Yes
Yes

Extras

Released

2024
2026

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.

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