Head to head · Prices checked Oct 28, 2026

DOIO KB04 01 vs Yunzii B75 Pro Max

Get the Yunzii B75 Pro Max for n-key rollover.

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from$49at WhatGeek

N-key rollover

from$84at Yunzii

Quick verdict

Which one should you get?

Get the

DOIO KB04 01

Rules this board out

North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
Macropad only. This is not a full keyboard.

$49 at WhatGeek

Get the

Yunzii B75 Pro Max

N-key rollover

Build quality in the top 15% of 75% boards under $100.

Rules this board out

South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
No numpad.

$84 at Yunzii

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.

DOIO KB04 01

Yunzii B75 Pro Max

Layout size
Macropad
75%
Connection
Wired
Bluetooth, 2.4 GHz, Wired
Wireless for several devices and wired for lower latency
Display
None
TFT
A case display rather than a typing feature
Weight
140 g
993 g
Heavier boards stay planted and lighter ones travel
N-key rollover
No
Yes

KeebFinder scores

How we score

DOIO KB04 01
Yunzii B75 Pro Max

Performance: 70
84
Build quality: 82
80
Productivity: 86
73
Customizability: 92
88
Portability: 77
90

What they share

Hot-swappable
Switch options: Linear
Knob
QMK
VIA

See every spec side by side

Full specs

DOIO KB04 01 vs Yunzii B75 Pro Max specs

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

8 of 21 specs differ

Spec

DOIO KB04 01

Yunzii B75 Pro Max

Typing & switches

Switch options

Linear

Hot-swappable

Yes

Mount style

—

Gasket Mount

Layout

Layout size

Macropad

75%

Layout standard

ANSI

Ergonomics

Standard

Knob

Yes

Display

None

TFT

Connectivity & battery

Connection

Wired

Bluetooth, 2.4 GHz, Wired

Battery

Wired only

8,000 mAh

USB-C

Yes

Build & materials

Case material

Acrylic, Aluminum

—

Keycaps

—

PBT

Weight

140 g

993 g

Dimensions

32 x 54 x 85 mm

42 x 334 x 144 mm

Backlight

RGB, south-facing

Firmware & software

QMK

Yes

VIA

Yes

N-key rollover

Yes

Mac & Windows

Yes

Extras

Released

2022

2025

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.

DOIO KB04 012 stores