YUNZII B75 PRO Wireless Mechanical Gaming Keyboard 75% Knob Purple Cocoa V2 Switch

Compact 75% layout with control knob

The YUNZII B75 PRO is a 75 percent mechanical keyboard with 82 keys and a multifunction rotary knob. It targets gamers and typists who want a smaller footprint than a full-size board while keeping dedicated function and arrow keys. The knob adjusts volume, RGB brightness and switches between gaming and office modes with a long press. Three connection modes — Bluetooth, 2.4 GHz wireless and wired USB-C — suit desktop and mobile setups alike.

Gasket mount with five-layer damping

A gasket-mounted structure combines five layers of padding, double-shot PBT Cherry-profile keycaps, pre-lubed linear switches and tuned stabilisers to reduce ping and hollow resonance. The 4000 mAh lithium-ion battery supports extended wireless sessions without frequent recharging. South-facing RGB LEDs shine through the legends evenly and are fully programmable per key. The ABS case measures 334.4 by 143.6 by 42.15 millimetres (13.17 by 5.65 by 1.66 inches).

Hot-swap sockets for switch experimentation

Hot-swappable sockets let owners replace the stock Cocoa V2 or Milk V2 linear switches without soldering, so the board can evolve from a smooth linear feel to tactile or clicky alternatives. It does not suit buyers who need a dedicated number pad or a built-in wrist rest, and it lacks low-profile switch support or an aluminium case option. The upgrade makes sense when a compact, programmable, triple-mode board with a premium typing sound is the priority.