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Head to head · Prices checked Oct 21, 2026

Jamesdonkey RS2 4.0 vs Skyloong GK104Pro

Get the Skyloong GK104Pro for the 8,000 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.

Jamesdonkey RS2 4.0

Skyloong GK104Pro

  • Layout size

    96%

    100%

  • Battery

    4,000 mAh

    8,000 mAh

  • Ergonomics

    Standard

    Split Spacebar

  • Case material

    Aluminum

    ABS

  • Display

    None

    LCD

KeebFinder scores

How we score
  • Jamesdonkey RS2 4.0
  • Skyloong GK104Pro
Performance
58
85
Build quality
71
53
Productivity
93
74
Customizability
82
75
Portability
53
64

What they share

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

Full specs

Jamesdonkey RS2 4.0 vs Skyloong GK104Pro specs

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

12 of 23 specs differ

Jamesdonkey RS2 4.0

Skyloong GK104Pro

Typing & switches

Switch options

Linear
Linear

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
No

Layout

Layout size

96%
100%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Split Spacebar

Knob

Yes
Yes

Display

None
LCD

Media keys

Yes
No

Connectivity & battery

Connection

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

Max polling rate

—
8,000 Hz

Battery

4,000 mAh
8,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

Aluminum
ABS

Keycaps

PBT
—

Weight

1,150 g
1,850 g

Dimensions

34 x 405 x 138 mm
20 x 146 x 452 mm

Backlight

RGB
RGB, south-facing

Firmware & software

QMK

Yes
No

N-key rollover

No
Yes

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
  • AmazonGlobal

    Check price
    ~$79Visit
  • WhatGeekCN

    Out of stock
    $79Visit
  • MechkeysCN

    Out of stock
    $109Visit

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.

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