Keychron K0 Max vs Yunzii AL21 Specs

Compare Keychron K0 Max vs Yunzii AL21 Differences Side by Side

Explore the comprehensive side-by-side comparison of the Keychron K0 Max 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.

Model
Rating	3.9 stars (8 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Released in 2025 Has Tactile, Linear, Silent, Clicky switch options Features a low-profile design Built with the ANSI layout standard Supports QMK firmware Supports VIA configuration Includes screw-in stabilizers Uses a Plate Mount mounting style Runs at a 1000 Hz polling rate Equipped with a 750 mAh battery Made with a Aluminum, Plastic case Features POM, PBT keycaps Offers Yes, Rgb, North-face, Rgb North-face RGB lighting	Released in 2026 Has Linear switch options Uses a Gasket Mount mounting style 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 Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Score	Scores Performance: 80.9 Build Quality: 85.8 Productivity: 94.7 Customizability: 93.9 Portability: 88.3	Scores Performance: 74 Build Quality: 76.7 Productivity: 83.3 Customizability: 74.6 Portability: 88.4
Name	Name Keychron K0 Max	Name Yunzii AL21
Release year	Release year 2025	Release year 2026
Switch Options	Switch Options Tactile, Linear, Silent, Clicky	Switch Options Linear
Profile	Profile Low 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 1000 Hz	Polling Rate -
Battery capacity	Battery capacity 750 mAh	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 Plate Mount	Mount Style Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, North-face	Backlight Rgb, South-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material Aluminum, Plastic	Case Material Aluminum
Keycaps Material	Keycaps Material POM, PBT	Keycaps Material PBT
Dimensions	Dimensions -	Dimensions 44 x 136 x 91 mm
Weight	Weight -	Weight 458g

-25% off

Keychron K0 Max QMK Wireless Custom Number Pad

YUNZII AL21 Wireless Aluminum Mechanical Numpad Keyboard

Select a keyboard to compare

3.9 stars (8 reviews)

0.0 stars (0 reviews)

Released in 2025
Has Tactile, Linear, Silent, Clicky switch options
Features a low-profile design
Built with the ANSI layout standard
Supports QMK firmware
Supports VIA configuration
Includes screw-in stabilizers
Uses a Plate Mount mounting style
Runs at a 1000 Hz polling rate
Equipped with a 750 mAh battery
Made with a Aluminum, Plastic case
Features POM, PBT keycaps
Offers Yes, Rgb, North-face, Rgb North-face RGB lighting

Released in 2026
Has Linear switch options
Uses a Gasket Mount mounting style
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
Offers Yes, Rgb, South-face, Rgb South-face RGB lighting

Scores

Performance: 80.9
Build Quality: 85.8
Productivity: 94.7
Customizability: 93.9
Portability: 88.3

Scores

Performance: 74
Build Quality: 76.7
Productivity: 83.3
Customizability: 74.6
Portability: 88.4

Name

Keychron K0 Max

Name

Yunzii AL21

Release year

2025

Release year

2026

Switch Options

Tactile, Linear, Silent, Clicky

Switch Options

Linear

Profile

Low Profile

Profile

Normal Profile

Hot Swappable

Layout Size

Numpad

Layout Size

Numpad

Layout Standard

ANSI

Layout Standard

Layout Ergonomics

Normal

Layout Ergonomics

Normal

Knob Support

Display Support

Mac/Win Support

Multi-Media Keys

USB-C

USB passthrough

Connection

Bluetooth, 2.4 GHz, Wired, Wireless

Connection

Bluetooth, 2.4 GHz, Wired, Wireless

Polling Rate

1000 Hz

Polling Rate

Battery capacity

750 mAh

Battery capacity

1500 mAh

Hall Effect Support

QMK Support

VIA Support

VIAL Support

N-Key Rollover

Rapid Trigger

Mount Style

Plate Mount

Mount Style

Gasket Mount

Screw in Stabilizers

Sound Dampening

Backlight

Rgb, North-face

Backlight

Rgb, South-face

Case Colors

Case Material

Aluminum, Plastic

Case Material

Aluminum

Keycaps Material

POM, PBT

Keycaps Material

PBT

Dimensions

44 x 136 x 91 mm

Weight

458g

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Model
	-25% off 91	77	Select a keyboard to compare
Rating	3.9 stars (8 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Released in 2025 Has Tactile, Linear, Silent, Clicky switch options Features a low-profile design Built with the ANSI layout standard Supports QMK firmware Supports VIA configuration Includes screw-in stabilizers Uses a Plate Mount mounting style Runs at a 1000 Hz polling rate Equipped with a 750 mAh battery Made with a Aluminum, Plastic case Features POM, PBT keycaps Offers Yes, Rgb, North-face, Rgb North-face RGB lighting	Released in 2026 Has Linear switch options Uses a Gasket Mount mounting style 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 Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Score	Scores Performance: 80.9 Build Quality: 85.8 Productivity: 94.7 Customizability: 93.9 Portability: 88.3	Scores Performance: 74 Build Quality: 76.7 Productivity: 83.3 Customizability: 74.6 Portability: 88.4
Name	Name Keychron K0 Max	Name Yunzii AL21
Release year	Release year 2025	Release year 2026
Switch Options	Switch Options Tactile, Linear, Silent, Clicky	Switch Options Linear
Profile	Profile Low 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 1000 Hz	Polling Rate -
Battery capacity	Battery capacity 750 mAh	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 Plate Mount	Mount Style Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, North-face	Backlight Rgb, South-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material Aluminum, Plastic	Case Material Aluminum
Keycaps Material	Keycaps Material POM, PBT	Keycaps Material PBT
Dimensions	Dimensions -	Dimensions 44 x 136 x 91 mm
Weight	Weight -	Weight 458g