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Head to head · Prices checked Oct 21, 2026

Jamesdonkey A3 vs Keydous NJ81

Get the Jamesdonkey A3 for knob. Get the Keydous NJ81 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.

Jamesdonkey A3

Keydous NJ81

  • Battery

    3,000 mAh

    4,000 mAh

  • Case material

    ABS, PBT, Plastic, Polycarbonate

    Plastic

  • Switch options

    Clicky, Linear, Tactile

    Clicky, Linear

  • Knob

    Yes

    No

  • Display

    None

    Yes

KeebFinder scores

How we score
  • Jamesdonkey A3
  • Keydous NJ81
Performance
62
49
Build quality
66
55
Productivity
91
65
Customizability
85
79
Portability
79
80

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Mount style: Gasket Mount
  • Keycaps: PBT
See every spec side by side

Full specs

Jamesdonkey A3 vs Keydous NJ81 specs

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

12 of 23 specs differ

Jamesdonkey A3

Keydous NJ81

Typing & switches

Switch options

Clicky, Linear, Tactile
Clicky, Linear

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
No

Screw-in stabilizers

Yes
No

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

None
Yes

Media keys

Yes
No

Connectivity & battery

Connection

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

Battery

3,000 mAh
4,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

ABS, PBT, Plastic, Polycarbonate
Plastic

Plate material

Polycarbonate
Brass, Steel

Keycaps

PBT
PBT

Weight

1,000 g
970 g

Dimensions

40 x 136 x 321 mm
36 x 134 x 315 mm

Backlight

RGB
RGB

Firmware & software

N-key rollover

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2022
2022

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
    $89Visit
  • AmazonGlobal

    Check price
    ~$89Visit
  • WhatGeekCN

    Out of stock
    $89Visit
Keydous NJ812 stores
  • MechkeysCN

    In stock
    $99Visit
  • AmazonGlobal

    Check price
    ~$99Visit

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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