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Head to head · Prices checked Oct 21, 2026

Coolkiller CK75 vs Keydous NJ81 CP V2

Get the Keydous NJ81 CP V2 for hall effect and rapid trigger.

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.

Coolkiller CK75

Keydous NJ81 CP V2

  • Hall effect (magnetic)

    No

    Yes

  • Rapid trigger

    No

    Yes

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Wired

  • Case material

    ABS, Aluminum, Plastic

    Metal

  • Switch options

    Linear, Tactile

    Magnetic

KeebFinder scores

How we score
  • Coolkiller CK75
  • Keydous NJ81 CP V2
Performance
61
78
Build quality
67
42
Productivity
86
51
Customizability
69
62
Portability
82
62

What they share

  • Layout size: 75%
  • Hot-swappable
See every spec side by side

Full specs

Coolkiller CK75 vs Keydous NJ81 CP V2 specs

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

14 of 23 specs differ

Coolkiller CK75

Keydous NJ81 CP V2

Typing & switches

Switch options

Linear, Tactile
Magnetic

Hall effect (magnetic)

No
Yes

Rapid trigger

No
Yes

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
—

Sound dampening

Yes
No

Screw-in stabilizers

Yes
No

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Display

None
Yes

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Wired

Battery

3,750 mAh
Wired only

USB-C

Yes
No

Build & materials

Case material

ABS, Aluminum, Plastic
Metal

Plate material

Polycarbonate
—

Keycaps

ABS, PBT
PBT

Weight

1,050 g
—

Dimensions

28 x 145 x 329 mm
—

Backlight

RGB, south-facing
RGB

Firmware & software

N-key rollover

Yes
No

Mac & Windows

Yes
No

Extras

Released

2022
2025

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

  • MechkeysCN

    In stock
    $148Visit
  • AmazonGlobal

    Check price
    Visit
  • WhatGeekCN

    Out of stock
    $148Visit
  • MechkeysCN

    In stock
    $129Visit
  • AmazonGlobal

    Check price
    ~$129Visit

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