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Head to head · Prices checked Oct 21, 2026

Chilkey ND75 LP vs Jamesdonkey RS2 4.0

Get the Chilkey ND75 LP for hall effect. Get the Jamesdonkey RS2 4.0 for the 4,000 mAh battery.

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.

Chilkey ND75 LP

Jamesdonkey RS2 4.0

  • Layout size

    75%

    96%

  • Hall effect (magnetic)

    Yes

    No

  • Battery

    3,600 mAh

    4,000 mAh

  • Low profile

    Yes

    No

  • Mount style

    Plate Mount

    Gasket Mount

KeebFinder scores

How we score
  • Chilkey ND75 LP
  • Jamesdonkey RS2 4.0
Performance
82
58
Build quality
74
71
Productivity
86
93
Customizability
74
82
Portability
82
53

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Case material: Aluminum
  • Sound dampening
  • Keycaps: PBT
See every spec side by side

Full specs

Chilkey ND75 LP vs Jamesdonkey RS2 4.0 specs

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

12 of 28 specs differ

Chilkey ND75 LP

Jamesdonkey RS2 4.0

Typing & switches

Switch options

—
Linear

Hall effect (magnetic)

Yes
No

Hot-swappable

Yes
Yes

Mount style

Plate Mount
Gasket Mount

Low profile

Yes
No

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
No

Layout

Layout size

75%
96%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

Yes
None

Media keys

No
Yes

Connectivity & battery

Connection

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

Max polling rate

1,000 Hz
—

Battery

3,600 mAh
4,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

Aluminum
Aluminum

Plate material

FR4
—

Keycaps

PBT
PBT

Weight

—
1,150 g

Dimensions

—
34 x 405 x 138 mm

Typing angle

7°
—

Backlight

RGB, south-facing
RGB

Firmware & software

QMK

No
Yes

N-key rollover

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2024
2024

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
    $99Visit
  • AmazonGlobal

    Check price
    ~$99Visit
  • WhatGeekCN

    Out of stock
    $108Visit

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