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Head to head · Prices checked Oct 21, 2026

Ducky Bethesda Tinker 75 ProjectD vs Jamesdonkey A3

Get the Ducky Bethesda Tinker 75 ProjectD for qmk. Get the Jamesdonkey A3 for knob.

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.

Ducky Bethesda Tinker 75 ProjectD

Jamesdonkey A3

  • Connection

    Wired

    Bluetooth, 2.4 GHz, Wired

  • Case material

    Aluminum

    ABS, PBT, Plastic, Polycarbonate

  • Mount style

    Plate Mount

    Gasket Mount

  • Knob

    No

    Yes

  • QMK

    Yes

    No

KeebFinder scores

How we score
  • Ducky Bethesda Tinker 75 ProjectD
  • Jamesdonkey A3
Performance
81
62
Build quality
80
66
Productivity
77
91
Customizability
92
85
Portability
64
79

What they share

  • Layout size: 75%
  • Hot-swappable
  • Switch options: Clicky, Linear, Tactile
  • Sound dampening
  • Keycaps: PBT
See every spec side by side

Full specs

Ducky Bethesda Tinker 75 ProjectD vs Jamesdonkey A3 specs

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

11 of 25 specs differ

Ducky Bethesda Tinker 75 ProjectD

Jamesdonkey A3

Typing & switches

Switch options

Clicky, Linear, Tactile
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Plate Mount
Gasket Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

No
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
None

Media keys

Yes
Yes

Connectivity & battery

Connection

Wired
Bluetooth, 2.4 GHz, Wired

Battery

Wired only
3,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

Aluminum
ABS, PBT, Plastic, Polycarbonate

Plate material

FR4
Polycarbonate

Keycaps

PBT
PBT

Weight

—
1,000 g

Dimensions

—
40 x 136 x 321 mm

Backlight

RGB, south-facing
RGB

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
Yes

Mac & Windows

No
Yes

Extras

Released

2024
2022

Where to buy

Compare prices

Live prices from the stores we track, cheapest in-stock offer first.

Lowest price across stores, Amazon excluded.

  • AmazonGlobal

    Check price
    ~$159Visit
  • MKUS

    Out of stock
    $159Visit
  • MechkeysCN

    In stock
    $89Visit
  • AmazonGlobal

    Check price
    ~$89Visit
  • WhatGeekCN

    Out of stock
    $89Visit

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