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Head to head · Prices checked Oct 30, 2026

Jamesdonkey RS2 4.0 vs Lofree TOFU100

Get the Jamesdonkey RS2 4.0 for the 4,000 mAh battery.

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Quick verdict

Which one should you get?

Get the

Jamesdonkey RS2 4.0

Battery

Build quality in the top 35% of 96% boards under $100.

Rules this board out

  • Compact full-size layout. The numpad is present, the gaps of a full-size board are not.

Get the

Lofree TOFU100

Build quality in the top 40% of 100% boards under $150.

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

Lofree TOFU100

  • Layout size

    96%

    100%

  • Battery

    4,000 mAh

    3,000 mAh

    A larger battery means fewer cables during the day

  • Case material

    Aluminum

    ABS

  • Mount style

    Gasket Mount

    Plate Mount

  • Weight

    1,150 g

    1,010 g

    Heavier boards stay planted and lighter ones travel

KeebFinder scores

How we score
  • Jamesdonkey RS2 4.0
  • Lofree TOFU100
Performance
58
64
Build quality
71
59
Productivity
93
73
Customizability
82
75
Portability
53
56

What they share

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

Full specs

Jamesdonkey RS2 4.0 vs Lofree TOFU100 specs

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

10 of 23 specs differ

Jamesdonkey RS2 4.0

Lofree TOFU100

Typing & switches

Switch options

Linear
Linear

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Plate Mount

Sound dampening

Yes
No

Layout

Layout size

96%
100%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

None
None

Media keys

Yes
Yes

Connectivity & battery

Connection

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

Battery

4,000 mAhBetter
3,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

Aluminum
ABS

Keycaps

PBT
PBT

Weight

1,150 g
1,010 g

Dimensions

34 x 405 x 138 mm
55 x 129 x 367 mm

Typing angle

—
12°, 9°

Backlight

RGB
None

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.

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Lowest price across stores, Amazon excluded.

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