Head to head · Prices checked Nov 13, 2026

Coolkiller ROCOCO vs Yunzii B75 Pro

Get the Yunzii B75 Pro for knob.

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Coolkiller ROCOCO

from$89at Mechkeys

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Knob

Yunzii B75 Pro

from$79at Yunzii

Compare 3 stores

Quick verdict

Which one should you get?

Get the

Coolkiller ROCOCO

Build quality in the bottom 15% of 65% boards under $100.

Rules this board out

South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
65% layout. No function row and no numpad.

$89 at Mechkeys

Get the

Yunzii B75 Pro

Knob

Build quality in the top 35% 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.

$79 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.

Coolkiller ROCOCO

Yunzii B75 Pro

Layout size
65%
75%
Case material
ABS
Plastic
Switch options
Linear
Clicky, Linear, Tactile
Knob
No
Yes
Layout standard
ANSI
ANSI, Dvorak, ISO
ISO and JIS exist so regional layouts fit

KeebFinder scores

How we score

Coolkiller ROCOCO
Yunzii B75 Pro

Performance: 45
85
Build quality: 47
72
Productivity: 59
91
Customizability: 60
78
Portability: 82
80

What they share

Connection: Bluetooth, 2.4 GHz, Wired
Hot-swappable
Mount style: Gasket Mount
Sound dampening

See every spec side by side

Full specs

Coolkiller ROCOCO vs Yunzii B75 Pro specs

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

10 of 24 specs differ

Spec

Coolkiller ROCOCO

Yunzii B75 Pro

Typing & switches

Switch options

Linear

Clicky, Linear, Tactile

Hot-swappable

Yes

Mount style

Gasket Mount

Sound dampening

Yes

Screw-in stabilizers

Yes

Layout

Layout size

65%

75%

Layout standard

ANSI

ANSI, Dvorak, ISO

Ergonomics

Standard

Knob

Yes

Display

None

Media keys

Yes

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired

Max polling rate

—

4,000 Hz

Battery

—

4,000 mAh

USB-C

Yes

Build & materials

Case material

ABS

Plastic

Plate material

—

Aluminum

Keycaps

—

PBT, PC

Weight

—

937 g

Dimensions

—

42 x 334 x 144 mm

Backlight

RGB, south-facing

Firmware & software

N-key rollover

Yes

Mac & Windows

Yes

Extras

Released

2023

2024

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.

Coolkiller ROCOCO3 stores