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Head to head · Prices checked Oct 21, 2026

Jamesdonkey RS2 4.0 vs KBDFans TOFU TKL

Get the Jamesdonkey RS2 4.0 for the 4,000 mAh battery. Get the KBDFans TOFU TKL for hall effect.

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

KBDFans TOFU TKL

  • Layout size

    96%

    80%

  • Hall effect (magnetic)

    No

    Yes

  • Battery

    4,000 mAh

    1,000 mAh

  • Case material

    Aluminum

    Aluminum, Brass, Copper, Steel

  • Switch options

    Linear

    Magnetic

KeebFinder scores

How we score
  • Jamesdonkey RS2 4.0
  • KBDFans TOFU TKL
Performance
58
74
Build quality
71
95
Productivity
93
95
Customizability
82
78
Portability
53
70

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Mount style: Gasket Mount
  • Sound dampening
See every spec side by side

Full specs

Jamesdonkey RS2 4.0 vs KBDFans TOFU TKL specs

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

16 of 29 specs differ

Jamesdonkey RS2 4.0

KBDFans TOFU TKL

Typing & switches

Switch options

Linear
Magnetic

Hall effect (magnetic)

No
Yes

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

No
Yes

Layout

Layout size

96%
80%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

None
None

Media keys

Yes
No

Connectivity & battery

Connection

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

Max polling rate

—
1,000 Hz

Battery

4,000 mAhBetter
1,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

Aluminum
Aluminum, Brass, Copper, Steel

Plate material

—
Aluminum, Brass, CarbonFiber, FR4, Polycarbonate, Steel

Keycaps

PBT
—

Weight

1,150 g
4,900 g

Dimensions

34 x 405 x 138 mm
40 x 360 x 140 mm

Typing angle

—
9°

Backlight

RGB
None

Firmware & software

QMK

Yes
No

VIA

No
Yes

VIAL

No
Yes

N-key rollover

No
Yes

Mac & Windows

Yes
Yes

Extras

Released

2024
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
    $99Visit
  • AmazonGlobal

    Check price
    ~$99Visit
  • WhatGeekCN

    Out of stock
    $108Visit
  • KBDfansCN

    In stock
    $59Visit
  • AmazonGlobal

    Check price
    ~$59Visit

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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