Compare Coolkiller ROCOCO Numpad vs Yunzii AL21 Differences Side by Side

Explore the comprehensive side-by-side comparison of the Coolkiller ROCOCO Numpad and Yunzii AL21 and view their biggest differences. The detailed comparison table allows you to see all the essential features, specifications, and benefits of each keyboard at a glance. Whether you're looking for performance, value, or specific functionalities, this comparison tool helps you make an informed decision.

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Main differences	Released in 2024 Built with the ANSI layout standard Made with a ABS case	Released in 2026 Has Linear switch options Comes with a knob Connects via USB-C Features N-key rollover Equipped with a 1500 mAh battery Weighs about 458 g Sized at 44 x 136 x 91 mm Made with a Aluminum case Features PBT keycaps
Score	Scores Performance: 57 Build Quality: 62 Productivity: 61.2 Customizability: 63.7 Portability: 83.3	Scores Performance: 75.1 Build Quality: 78 Productivity: 84.2 Customizability: 76 Portability: 88.6
Name	Name Coolkiller ROCOCO Numpad	Name Yunzii AL21
Release year	Release year 2024	Release year 2026
Switch Options	Switch Options -	Switch Options Linear
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size Numpad	Layout Size Numpad
Layout Standard	Layout Standard ANSI	Layout Standard -
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Normal
Knob Support	Knob Support	Knob Support
Display Support	Display Support	Display Support
Mac/Win Support	Mac/Win Support	Mac/Win Support
Multi-Media Keys	Multi-Media Keys	Multi-Media Keys
USB-C	USB-C	USB-C
USB passthrough	USB passthrough	USB passthrough
Connection	Connection Bluetooth, 2.4 GHz, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate -	Polling Rate -
Battery capacity	Battery capacity -	Battery capacity 1500 mAh
Hall Effect Support	Hall Effect Support	Hall Effect Support
QMK Support	QMK Support	QMK Support
VIA Support	VIA Support	VIA Support
VIAL Support	VIAL Support	VIAL Support
N-Key Rollover	N-Key Rollover	N-Key Rollover
Rapid Trigger	Rapid Trigger	Rapid Trigger
Mount Style	Mount Style Gasket Mount	Mount Style Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, South-face	Backlight Rgb, South-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material ABS	Case Material Aluminum
Keycaps Material	Keycaps Material -	Keycaps Material PBT
Dimensions	Dimensions -	Dimensions 44 x 136 x 91 mm
Weight	Weight -	Weight 458g