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YUNZII B75 Pro specifications and in-depth review

YUNZII B75 Pro

Manufacturer: YUNZII

The YUNZII B75 Pro is a compact 75% mechanical keyboard aimed at gamers and enthusiasts who want a versatile daily driver with broad connectivity options. It supports USB, 2.4 GHz wireless, and Bluetooth, giving users the flexibility to switch between wired and wireless setups as needed. The keyboard features a gasket mount construction, which is housed in an aluminum and plastic case with an aluminum plate, lending it a relatively solid build at 907 g.

Typing feel is handled by the included Milk Linear Switch, a mechanical switch with a 45 g actuation force, 2 mm actuation distance, and 4 mm total travel. The switches are hot-swappable, allowing them to be replaced without soldering. The keyboard offers full N-key rollover, RGB backlighting with OEM-profile PBT double-shot keycaps, a rotary dial, and a rated battery life of 96 hours in wireless use. The layout follows the ANSI standard with media functions accessible via the Fn layer, and the detachable cable adds convenience for wired use.

Pros
  • Hot-swappable switches allow for easy replacement without soldering
  • Tri-mode connectivity via USB, 2.4 GHz wireless, and Bluetooth offers flexible setup options
  • Gasket mount construction provides a more cushioned typing experience compared to standard plate mounting
  • 96-hour battery life supports extended wireless use between charges
  • N-key rollover ensures every simultaneous keypress is accurately registered
  • Detachable cable adds convenience when switching between wired and wireless modes
Cons
  • No support for QMK, ZMK, or VIA firmware, limiting software-level customization
  • Media controls are only accessible via the Fn layer, with no dedicated media keys
  • Does not include a wrist rest, which may affect comfort during extended typing sessions
  • No rapid trigger, adjustable actuation, or analog input, ruling out certain competitive gaming use cases
  • Available only in black, offering no color variety
  • One-year warranty period is relatively short for a keyboard in this category
Who is this for?

The YUNZII B75 Pro is well suited to users who want a compact 75% layout without sacrificing too many keys, making it a practical choice for both desk setups with limited space and on-the-go use. The tri-mode connectivity — covering USB, 2.4 GHz wireless, and Bluetooth — makes it a strong fit for anyone who regularly switches between multiple devices or prefers a cable-free workspace. Users who enjoy personalizing their typing experience will also appreciate the hot-swappable linear switches, which allow for straightforward switch changes, as well as the gasket mount that contributes to a softer, more cushioned keystroke feel.

Who is this NOT for?

Users who rely on advanced firmware customization tools such as QMK, ZMK, or VIA will find this keyboard limiting, as none of these are supported. It is also a poor fit for competitive gamers who depend on features like rapid trigger or adjustable actuation, since the keyboard offers fixed 2 mm actuation with no per-key sensitivity adjustments. Additionally, users who prefer a broader range of color options or require a built-in wrist rest for ergonomic support during long typing sessions may find the available configuration insufficient for their needs.

General info:

Keyboard type Mechanical, Gaming
Keyboard layout size Compact (75%)
Profile Standard
connectivity Wireless & wired
connection type USB, 2.4GHz wireless, Bluetooth
polling rate 1000 Hz
Mount type Gasket mount
Battery life 96 hours
designed for Mac ✕
has a detachable cable ✓
height 143.6 mm
width 334 mm
thickness 42 mm
weight 907 g
warranty period 1 years

The YUNZII B75 Pro is a mechanical gaming keyboard in a compact 75% layout with a standard profile and gasket mount construction. It supports three connection modes — USB, 2.4 GHz wireless, and Bluetooth — and delivers a polling rate of 1000 Hz alongside a rated battery life of 96 hours for wireless use. The keyboard measures 334 mm wide, 143.6 mm deep, and 42 mm thick, weighing in at 907 g, and comes with a detachable cable and adjustable feet. It is not designed specifically for Mac, and carries a one-year warranty.

Design:

has RGB lighting ✓
Has a backlit keyboard ✓
Case material Aluminum, Plastic
Plate material Aluminum
Case colors Black
has adjustable feet ✓
includes a wrist rest ✕

The YUNZII B75 Pro features a case constructed from aluminum and plastic with an aluminum plate, finished in black. The keyboard includes RGB backlighting and supports adjustable feet for typing angle customization. No wrist rest is included in the package.

Switches:

Switch type Mechanical
Switch feel Linear
Hot-swappable switches ✓
Switch name Milk Linear Switch
Actuation distance (min) 2 mm
Actuation distance (max) 2 mm
Actuation force 45 g
Total travel distance 4 mm

The YUNZII B75 Pro comes equipped with the Milk Linear Switch, a mechanical switch with a smooth, linear feel and an actuation force of 45 g. It registers at 2 mm of actuation distance and offers a total travel distance of 4 mm. The switches are hot-swappable, meaning they can be replaced without soldering directly on the board.

Features:

has analog input ✕
has rapid trigger ✕
has dual actuation ✕
has adjustable actuation ✕
has NKRO ✓
has USB passthrough ✕
Has a display ✕
has QMK support ✕
has ZMK support ✕
has VIA support ✕

The YUNZII B75 Pro supports N-key rollover (NKRO), ensuring every simultaneous keypress is registered without conflict. It does not include analog input, rapid trigger, dual actuation, or adjustable actuation functionality. There is no USB passthrough port or built-in display, and the keyboard lacks support for QMK, ZMK, or VIA firmware customization.

Keys & layout:

Keyboard layout ANSI (United States)
Keycap type PBT, Double-shot
Keycap profile OEM
uses a standard key layout ✓
Media keys Via Fn key
has a rotary dial ✓

The YUNZII B75 Pro uses an ANSI (United States) layout with a standard key arrangement and PBT double-shot keycaps in an OEM profile. Media functions are accessible via the Fn key rather than dedicated keys, and the keyboard includes a rotary dial for additional input control.

Final Verdict

The YUNZII B75 Pro presents a well-rounded package for users seeking a compact mechanical keyboard with genuine build substance and practical connectivity. Its gasket mount construction combined with hot-swappable linear switches gives it a meaningful edge for those who prioritize typing feel and the ability to customize their switch setup without technical barriers. The tri-mode wireless support and strong 96-hour battery life further reinforce its appeal as a versatile everyday board. Where it falls short — namely the absence of advanced firmware support and performance-oriented features like rapid trigger — reflects a deliberate positioning toward general enthusiast use rather than competitive or heavily customized setups. For users whose needs align with that profile, the B75 Pro is a capable and thoughtfully specified option in the 75% keyboard space.