Ajazz AK820 Pro vs Yunzii AL66 vs B75 Pro Specs

Compare Ajazz AK820 Pro vs Yunzii AL66 vs B75 Pro Differences Side by Side

Explore the comprehensive side-by-side comparison of the Ajazz AK820 Pro and Yunzii AL66 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	4.6 stars (739 reviews)	0.0 stars (0 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Has Linear switch options Includes a Yes, TFT display Weighs about 810 g Sized at 40 x 327 x 136 mm Made with a ABS, Aluminum case	Has Clicky switch options Available in a 65% layout Equipped with a 4600 mAh battery Weighs about 1145 g Sized at 42 x 113 x 322 mm Made with a Aluminum case	Released in 2024 Has Linear, Clicky, Tactile switch options Built with the ISO, ANSI, Dvorak layout standard Includes screw-in stabilizers Supports Bluetooth, 2.4 GHz, Wired, Wireless, connectivity Runs at a 4000 Hz polling rate Weighs about 937 g Sized at 42 x 334 x 144 mm Made with a Plastic case Features PBT, PC keycaps
Score	Scores Performance: 61.2 Build Quality: 66.1 Productivity: 82.2 Customizability: 72.4 Portability: 79.1	Scores Performance: 55.2 Build Quality: 68.5 Productivity: 75.8 Customizability: 82.5 Portability: 87.9	Scores Performance: 74.7 Build Quality: 60.4 Productivity: 91.4 Customizability: 78.9 Portability: 80.2
Name	Name Ajazz AK820 Pro	Name Yunzii AL66	Name Yunzii B75 Pro
Release year	Release year 2023	Release year 2023	Release year 2024
Switch Options	Switch Options Linear	Switch Options Clicky	Switch Options Linear, Clicky, Tactile
Profile	Profile Normal Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 75%	Layout Size 65%	Layout Size 75%
Layout Standard	Layout Standard ANSI	Layout Standard ANSI	Layout Standard ISO, ANSI, Dvorak
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Normal	Layout Ergonomics Normal
Knob Support	Knob Support	Knob Support	Knob Support
Display Support	Display Support TFT	Display Support	Display Support
Mac/Win Support	Mac/Win Support	Mac/Win Support	Mac/Win Support
Multi-Media Keys	Multi-Media Keys	Multi-Media Keys	Multi-Media Keys
USB-C	USB-C	USB-C	USB-C
USB passthrough	USB passthrough	USB passthrough	USB passthrough
Connection	Connection Bluetooth, 2.4 GHz, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless,
Polling Rate	Polling Rate -	Polling Rate -	Polling Rate 4000 Hz
Battery capacity	Battery capacity 4000 mAh	Battery capacity 4600 mAh	Battery capacity 4000 mAh
Hall Effect Support	Hall Effect Support	Hall Effect Support	Hall Effect Support
QMK Support	QMK Support	QMK Support	QMK Support
VIA Support	VIA Support	VIA Support	VIA Support
VIAL Support	VIAL Support	VIAL Support	VIAL Support
N-Key Rollover	N-Key Rollover	N-Key Rollover	N-Key Rollover
Rapid Trigger	Rapid Trigger	Rapid Trigger	Rapid Trigger
Mount Style	Mount Style Gasket Mount	Mount Style Gasket Mount	Mount Style Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, South-face	Backlight Rgb, South-face	Backlight Rgb, South-face
Case Colors	Case Colors	Case Colors	Case Colors
Case Material	Case Material ABS, Aluminum	Case Material Aluminum	Case Material Plastic
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT	Keycaps Material PBT, PC
Dimensions	Dimensions 40 x 327 x 136 mm	Dimensions 42 x 113 x 322 mm	Dimensions 42 x 334 x 144 mm
Weight	Weight 810g	Weight 1145g	Weight 937g

YUNZII AL66 Knob CNC Aluminum Wireless Mechanical Keyboard

YUNZII B75 Pro Wireless Mechanical Keyboard - ISO Layout

4.6 stars (739 reviews)

0.0 stars (0 reviews)

Has Linear switch options
Includes a Yes, TFT display
Weighs about 810 g
Sized at 40 x 327 x 136 mm
Made with a ABS, Aluminum case

Has Clicky switch options
Available in a 65% layout
Equipped with a 4600 mAh battery
Weighs about 1145 g
Sized at 42 x 113 x 322 mm
Made with a Aluminum case

Released in 2024
Has Linear, Clicky, Tactile switch options
Built with the ISO, ANSI, Dvorak layout standard
Includes screw-in stabilizers
Supports Bluetooth, 2.4 GHz, Wired, Wireless, connectivity
Runs at a 4000 Hz polling rate
Weighs about 937 g
Sized at 42 x 334 x 144 mm
Made with a Plastic case
Features PBT, PC keycaps

Scores

Performance: 61.2
Build Quality: 66.1
Productivity: 82.2
Customizability: 72.4
Portability: 79.1

Scores

Performance: 55.2
Build Quality: 68.5
Productivity: 75.8
Customizability: 82.5
Portability: 87.9

Scores

Performance: 74.7
Build Quality: 60.4
Productivity: 91.4
Customizability: 78.9
Portability: 80.2

Name

Ajazz AK820 Pro

Name

Yunzii AL66

Name

Yunzii B75 Pro

Release year

2023

Release year

2023

Release year

2024

Switch Options

Linear

Switch Options

Clicky

Switch Options

Linear, Clicky, Tactile

Profile

Normal Profile

Profile

Normal Profile

Profile

Normal Profile

Hot Swappable

Layout Size

75%

Layout Size

65%

Layout Size

75%

Layout Standard

ANSI

Layout Standard

ANSI

Layout Standard

ISO, ANSI, Dvorak

Layout Ergonomics

Normal

Layout Ergonomics

Normal

Layout Ergonomics

Normal

Knob Support

Display Support

TFT

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

Connection

Bluetooth, 2.4 GHz, Wired, Wireless,

Polling Rate

4000 Hz

Battery capacity

4000 mAh

Battery capacity

4600 mAh

Battery capacity

4000 mAh

Hall Effect Support

QMK Support

VIA Support

VIAL Support

N-Key Rollover

Rapid Trigger

Mount Style

Gasket Mount

Mount Style

Gasket Mount

Mount Style

Gasket Mount

Screw in Stabilizers

Sound Dampening

Backlight

Rgb, South-face

Backlight

Rgb, South-face

Backlight

Rgb, South-face

Case Colors

Case Material

ABS, Aluminum

Case Material

Aluminum

Case Material

Plastic

Keycaps Material

PBT

Keycaps Material

PBT

Keycaps Material

PBT, PC

Dimensions

40 x 327 x 136 mm

Dimensions

42 x 113 x 322 mm

Dimensions

42 x 334 x 144 mm

Weight

810g

Weight

1145g

Weight

937g

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