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Head to head · Prices checked Oct 21, 2026

Epomaker RT85 vs Jamesdonkey A3 V3

Get the Epomaker RT85 for the 8,000 mAh battery. Get the Jamesdonkey A3 V3 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.

Epomaker RT85

Jamesdonkey A3 V3

  • Connection

    Bluetooth, 2.4 GHz, Wired

    2.4 GHz, Wired

  • Battery

    8,000 mAh

    3,750 mAh

  • Case material

    Plastic

    Aluminum

  • Switch options

    Linear, Silent, Tactile

    Linear

  • Knob

    No

    Yes

KeebFinder scores

How we score
  • Epomaker RT85
  • Jamesdonkey A3 V3
Performance
75
71
Build quality
67
80
Productivity
77
90
Customizability
68
83
Portability
92
82

What they share

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

From real owners

What owners say

Ratings and quotes collected from verified store reviews, including the critical ones.

Epomaker RT85

4.8

37 owner reviews

Praise
“My all time favorite keyboard -- awesome aesthetics, great functionality, types like a dream, and brings just the right amount of fun and whimsy to my new setup.”
Cody S.Verified buyer· via Epomaker

Jamesdonkey A3 V3

No owner reviews collected yet.

Full specs

Epomaker RT85 vs Jamesdonkey A3 V3 specs

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

13 of 24 specs differ

Epomaker RT85

Jamesdonkey A3 V3

Typing & switches

Switch options

Linear, Silent, Tactile
Linear

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

No
Yes

Display

TFT
None

Media keys

No
Yes

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
2.4 GHz, Wired

Max polling rate

1,000 Hz
—

Battery

8,000 mAhBetter
3,750 mAh

USB-C

Yes
Yes

Build & materials

Case material

Plastic
Aluminum

Plate material

Polycarbonate
—

Keycaps

PBT
PBT

Weight

1,000 g
1,200 g

Dimensions

40 x 360 x 138 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

2025
2024

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

  • EpomakerUS

    In stock
    $85Visit
  • AmazonGlobal

    Check price
    Visit
  • AmazonGlobal

    Check price
    ~$75Visit
  • WhatGeekCN

    Out of stock
    $75Visit

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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