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Head to head · Prices checked Oct 21, 2026

Ducky Zero 6108 vs Jamesdonkey RS2 4.0

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.

Ducky Zero 6108

Jamesdonkey RS2 4.0

  • Layout size

    100%

    96%

  • Battery

    2,500 mAh

    4,000 mAh

  • Case material

    ABS, Plastic

    Aluminum

  • Switch options

    Clicky, Linear, Tactile

    Linear

  • Mount style

    Plate Mount

    Gasket Mount

KeebFinder scores

How we score
  • Ducky Zero 6108
  • Jamesdonkey RS2 4.0
Performance
74
58
Build quality
52
71
Productivity
62
93
Customizability
58
82
Portability
50
53

What they share

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

Full specs

Ducky Zero 6108 vs Jamesdonkey RS2 4.0 specs

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

10 of 23 specs differ

Ducky Zero 6108

Jamesdonkey RS2 4.0

Typing & switches

Switch options

Clicky, Linear, Tactile
Linear

Hot-swappable

Yes
Yes

Mount style

Plate Mount
Gasket Mount

Sound dampening

Yes
Yes

Layout

Layout size

100%
96%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
None

Media keys

Yes
Yes

Connectivity & battery

Connection

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

Battery

2,500 mAh
4,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

ABS, Plastic
Aluminum

Plate material

Aluminum
—

Keycaps

PBT
PBT

Weight

—
1,150 g

Dimensions

—
34 x 405 x 138 mm

Backlight

RGB, south-facing
RGB

Firmware & software

QMK

No
Yes

N-key rollover

Yes
No

Mac & Windows

No
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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