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Head to head · Prices checked Nov 11, 2026

Coolkiller ROCOCO Numpad vs Yunzii AL21

Get the Yunzii AL21 for knob and n-key rollover.

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Quick verdict

Which one should you get?

Get the

Coolkiller ROCOCO Numpad

Build quality in the bottom 45% of Numpad boards under $100.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.

Get the

Yunzii AL21

Knob

Build quality in the top 10% of Numpad boards under $50.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.

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 Numpad

Yunzii AL21

  • Case material

    ABS

    Aluminum

  • Knob

    No

    Yes

  • N-key rollover

    No

    Yes

  • Released

    2024

    2026

  • USB-C

    No

    Yes

KeebFinder scores

How we score
  • Coolkiller ROCOCO Numpad
  • Yunzii AL21
Performance
56
75
Build quality
61
77
Productivity
60
84
Customizability
63
74
Portability
83
89

What they share

  • Layout size: Numpad
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Mount style: Gasket Mount
  • Sound dampening
See every spec side by side

Full specs

Coolkiller ROCOCO Numpad vs Yunzii AL21 specs

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

5 of 20 specs differ

Coolkiller ROCOCO Numpad

Yunzii AL21

Typing & switches

Switch options

—
Linear

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Layout

Layout size

Numpad
Numpad

Layout standard

ANSI
—

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
None

Connectivity & battery

Connection

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

Battery

—
1,500 mAh

USB-C

No
Yes

Build & materials

Case material

ABS
Aluminum

Keycaps

—
PBT

Weight

—
458 g

Dimensions

—
44 x 136 x 91 mm

Backlight

RGB, south-facing
RGB, south-facing

Firmware & software

N-key rollover

No
Yes

Mac & Windows

Yes
Yes

Extras

Released

2024
2026

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.

Yunzii AL212 stores

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