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Head to head · Prices checked Oct 21, 2026

Fantech MAXFIT81 MK910 vs Jamesdonkey A3 3.0

Get the Fantech MAXFIT81 MK910 for the 4,000 mAh battery. Get the Jamesdonkey A3 3.0 for qmk.

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.

Fantech MAXFIT81 MK910

Jamesdonkey A3 3.0

  • Connection

    Bluetooth, Wired, 2.4 GHz

    Bluetooth, 2.4 GHz, Wired

  • Battery

    4,000 mAh

    3,750 mAh

  • Display

    OLED

    None

  • QMK

    No

    Yes

  • Keycaps

    ABS, PBT

    PBT

KeebFinder scores

How we score
  • Fantech MAXFIT81 MK910
  • Jamesdonkey A3 3.0
Performance
63
54
Build quality
68
60
Productivity
83
80
Customizability
82
82
Portability
81
76

What they share

  • Layout size: 75%
  • Hot-swappable
  • Mount style: Gasket Mount
  • Knob
  • Sound dampening
See every spec side by side

Full specs

Fantech MAXFIT81 MK910 vs Jamesdonkey A3 3.0 specs

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

11 of 23 specs differ

Fantech MAXFIT81 MK910

Jamesdonkey A3 3.0

Typing & switches

Switch options

Clicky, Linear, Tactile
—

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

OLED
None

Media keys

No
Yes

Connectivity & battery

Connection

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

Battery

4,000 mAhBetter
3,750 mAh

USB-C

Yes
No

Build & materials

Case material

ABS, Aluminum
—

Plate material

FR4
—

Keycaps

ABS, PBT
PBT

Weight

1,093 g
—

Dimensions

45 x 303 x 104 mm
42 x 148 x 329 mm

Backlight

RGB, south-facing
RGB

Firmware & software

QMK

No
Yes

N-key rollover

Yes
No

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.

Lowest price across stores, Amazon excluded.

  • MechkeysCN

    In stock
    $109Visit
  • AmazonGlobal

    Check price
    ~$109Visit
  • WhatGeekCN

    Out of stock
    $88Visit
  • MechkeysCN

    In stock
    $89Visit
  • AmazonGlobal

    Check price
    ~$89Visit

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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