TurboVS
YUNZII C75 specifications and in-depth review

YUNZII C75

Manufacturer: YUNZII

The YUNZII C75 is a 75% layout mechanical keyboard built around a gasket mount construction with an aluminum case, offering a balance of structural rigidity and typing comfort. It supports three connection modes — Bluetooth 5.0, 2.4GHz wireless, and wired USB — and carries a battery rated for up to 70 hours of use, making it suited for both desk setups and portable use. The board ships in five color options: Black, White, Blue, Pink, and Gray, and includes RGB backlighting with south-facing LEDs beneath PBT double-shot keycaps in OEM profile.

Internally, the C75 uses YUNZII Milk V2 Linear switches with a 40 g actuation force, 2 mm actuation distance, and 3.6 mm total travel. The switches are hot-swappable, allowing replacements without soldering. The plate is made from polycarbonate, which influences the overall sound and flex characteristics of the typing experience. Connectivity runs at a 1000 Hz polling rate over wired USB, and the keyboard uses a standard ANSI layout with media functions accessible via the Fn key. The unit weighs 1008 g and measures 335.9 × 162.1 × 44 mm, with adjustable feet included and a detachable cable for wired use.

Pros
  • Hot-swappable switches allow replacement without soldering, making it easy to change the typing feel over time
  • Tri-mode connectivity — Bluetooth 5.0, 2.4GHz wireless, and wired USB — covers a wide range of setup preferences
  • Gasket mount combined with a polycarbonate plate offers a more cushioned typing experience compared to rigid plate-only builds
  • 70-hour battery life provides extended wireless use between charges
  • Available in five case colors, with an aluminum build and adjustable feet for posture flexibility
  • PBT double-shot keycaps are durable and resistant to shine over time
Cons
  • No QMK, ZMK, or VIA support limits remapping and customization options for advanced users
  • Media controls are only accessible via the Fn layer — there are no dedicated media keys
  • Lacks NKRO, which may be a drawback for users who require full simultaneous key input
  • No rotary dial for quick volume or function adjustment
  • Does not include a wrist rest, which must be sourced separately
  • At 1008 g, the keyboard is relatively heavy for a 75% form factor, which may reduce portability
Who is this for?

The YUNZII C75 is well-suited to users who want a versatile wireless setup across multiple devices, given its Bluetooth 5.0, 2.4GHz, and wired USB connectivity alongside a 70-hour battery life. The gasket mount and polycarbonate plate make it a reasonable choice for those who prefer a softer, more cushioned typing feel over a stiff board. Users who like to swap switches over time without soldering will appreciate the hot-swappable design, and the five available case colors cater to those who want some degree of aesthetic choice in a compact 75% footprint.

Who is this NOT for?

Users who rely on advanced firmware customization through QMK, ZMK, or VIA will find this board limiting, as none of those platforms are supported. Competitive or fast-action typists who depend on NKRO or rapid trigger functionality will also encounter shortcomings, as neither feature is present. Additionally, at 1008 g, the keyboard is on the heavier side for a 75% layout, making it a poor fit for users who frequently travel with their gear or prioritize portability above all else.

General info:

Keyboard type Mechanical
Keyboard layout size Compact (75%)
Profile Standard
connectivity Wireless & wired
connection type Bluetooth, 2.4GHz wireless, USB
polling rate 1000 Hz
Mount type Gasket mount
Battery life 70 hours
designed for Mac ✓
has a detachable cable ✓
height 162.1 mm
width 335.9 mm
thickness 44 mm
weight 1008 g
Bluetooth version 5
warranty period 1 years

The YUNZII C75 is a compact 75% mechanical keyboard with a standard profile and gasket mount construction, measuring 335.9 × 162.1 × 44 mm and weighing 1008 g. It supports three connection modes — Bluetooth 5.0, 2.4GHz wireless, and wired USB — with a polling rate of 1000 Hz over USB and a battery life rated at 70 hours for wireless use. The keyboard includes a detachable cable, is compatible with Mac layouts, and covers both Windows and Mac environments. Physical dimensions aside, it carries a one-year warranty and the cable connection is handled through a detachable interface for added convenience.

Design:

has RGB lighting ✓
Has a backlit keyboard ✓
Case material Aluminum
Plate material Polycarbonate
Case colors Black, White, Blue, Pink, Gray
has adjustable feet ✓
includes a wrist rest ✕
Backlight facing direction South-facing

The YUNZII C75 features an aluminum case paired with a polycarbonate plate, and is available in five color options: Black, White, Blue, Pink, and Gray. It includes RGB backlighting with south-facing LEDs and supports adjustable feet for typing angle customization. A wrist rest is not included in the package.

Switches:

Switch type Mechanical
Switch feel Linear
Hot-swappable switches ✓
Switch name YUNZII Milk V2 Linear Switch
Actuation distance (min) 2 mm
Actuation distance (max) 2 mm
Actuation force 40 g
Total travel distance 3.6 mm

The YUNZII C75 comes equipped with the YUNZII Milk V2 Linear Switch, a mechanical linear switch with a smooth, bump-free feel. It has an actuation distance of 2 mm, a total travel distance of 3.6 mm, and requires 40 g of actuation force. 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 C75 does not include advanced input features such as analog input, rapid trigger, dual actuation, or adjustable actuation. It also lacks NKRO, USB passthrough, and an onboard display. On the firmware and remapping side, the board offers no support for QMK, ZMK, or VIA.

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 C75 uses a standard ANSI (United States) layout with PBT double-shot keycaps in an OEM profile, and the key arrangement follows a standard layout without any non-standard sizing. Media functions are accessible via the Fn key rather than through dedicated keys, and there is no rotary dial on the board.

Final Verdict

The YUNZII C75 is a compact 75% mechanical keyboard that covers the practical bases well — tri-mode wireless connectivity, a 70-hour battery, and a gasket mount with hot-swappable switches give it genuine day-to-day versatility for users who want flexibility in both connectivity and switch preference. Its aluminum case, PBT double-shot keycaps, and five color options reflect a thoughtful approach to build and aesthetics for a board in this form factor. That said, the absence of QMK, VIA, or NKRO support means it is not positioned for users who prioritize deep customization or high-input-demand use cases. For those seeking a wireless-capable, solid-feeling 75% board with room to tune the typing feel over time, the YUNZII C75 is a coherent and capable option — provided the firmware limitations fall outside their requirements.