Keychron K4 Ultra 8K Wireless Custom Mechanical Keyboard

Keychron K4 Ultra 8K Wireless Custom Mechanical Keyboard features a 96% layout, 2.4 GHz, Bluetooth, wired mode, ZMK macros, and 600-hour battery life.

Key specs

Layout: 96%, ANSI

Connectivity: 2.4 GHz, Bluetooth, wired; 8000 Hz polling rate

Switches: Keychron Apex Switch Red / Brown / Banana; hot-swappable

Build: ABS, Steel plate

Keycaps: OSA Double-Shot PBT Keycaps

Battery: 4000 mAh, up to 600 hours

Software: ZMK firmware; Keychron Launcher web app for key remapping and macros; works with macOS , Windows , Linux

Backlight: South-facing RGB LED

Weight: 1241g ± 10g

Dimensions: 391.29 x 140.27 mm

N-key rollover: Yes (wireless & wired)

Product details

Keychron K4 Ultra 8k is a wireless custom mechanical keyboard with a sleek, durable build. It supports 2.4 GHz, Bluetooth, and wired connections. Through the Keychron Launcher web app, users can remap keys and create macro commands on its 96% compact layout. Powered by ZMK firmware, it enables an 8K polling rate in wireless mode while delivering up to 600 hours of battery life. It is also fully compatible with Windows, macOS, and Linux.