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Head to head · Prices checked Nov 11, 2026

ACGAM ACTTO B705 vs Jamesdonkey RS2 4.0

Get the Jamesdonkey RS2 4.0 for hot-swappable and the 4,000 mAh battery.

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Quick verdict

Which one should you get?

Get the

ACGAM ACTTO B705

Build quality in the bottom 10% of 96% boards under $150.

Rules this board out

  • Switches are soldered. Swapping them means soldering.

Get the

Jamesdonkey RS2 4.0

Hot-swappable

Build quality in the top 40% of 96% boards under $100.

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.

ACGAM ACTTO B705

Jamesdonkey RS2 4.0

  • Connection

    Bluetooth, Wired

    Bluetooth, 2.4 GHz, Wired

    Wireless for several devices and wired for lower latency

  • Hot-swappable

    No

    Yes

    Switch changes without soldering

  • Battery

    1,500 mAh

    4,000 mAh

    A larger battery means fewer cables during the day

  • Case material

    Plastic

    Aluminum

  • Knob

    No

    Yes

KeebFinder scores

How we score
  • ACGAM ACTTO B705
  • Jamesdonkey RS2 4.0
Performance
62
57
Build quality
43
70
Productivity
60
93
Customizability
58
82
Portability
51
53

What they share

  • Layout size: 96%
  • Switch options: Linear
See every spec side by side

Full specs

ACGAM ACTTO B705 vs Jamesdonkey RS2 4.0 specs

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

11 of 21 specs differ

ACGAM ACTTO B705

Jamesdonkey RS2 4.0

Typing & switches

Switch options

Linear
Linear

Hot-swappable

No
Yes

Mount style

—
Gasket Mount

Sound dampening

No
Yes

Layout

Layout size

96%
96%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
None

Media keys

Yes
Yes

Connectivity & battery

Connection

Bluetooth, Wired
Bluetooth, 2.4 GHz, Wired

Battery

1,500 mAh
4,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

Plastic
Aluminum

Keycaps

ABS, PBT
PBT

Weight

900 g
1,150 g

Dimensions

48 x 152 x 339 mm
34 x 405 x 138 mm

Backlight

RGB
RGB

Firmware & software

QMK

No
Yes

Mac & Windows

Yes
Yes

Extras

Released

2023
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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