Keychron K8 Ultra 8K Black TKL Wireless Mechanical Keyboard with Brown Switches, Hot-Swap, RGB, ZMK, 8K Polling, 2.4 GHz, Bluetooth 5.2, USB-C and Aluminum Frame for Gaming Desk.

Expert Features 80% TKL Layout: Keeps essential keys while removing the number pad, giving your mouse more room. 8K Polling Rate: Supports 8,000 Hz in 2.4 GHz wireless and wired modes; Bluetooth polling is 125 Hz. Three Connection Modes: Connect via 2.4 GHz, Bluetooth 5.2, or USB-C wired. Bluetooth supports switching between up to three devices. Keychron Apex Brown Switches: The tactile Brown switches come pre-lubed on this fully assembled model. Hot-Swappable: Swap compatible switches without soldering. ZMK and Keychron Launcher: Remap keys and create macros through the Launcher web app. Customizable RGB: More than 22 lighting settings, including per-key RGB and Mix RGB. Extended Battery Life: The 4,000 mAh battery offers up to 760 hours with the backlight off, or up to 230 hours with RGB at its lowest brightness. CNC Aluminum Frame: A full-metal frame gives the keyboard a sturdy, substantial build. Double-Shot PBT Keycaps: OSA profile keycaps are designed to resist oil and help keep legends from fading. Mac, Windows, and Linux Support: Switch between supported systems; Mac and Windows keycaps are included. Expert Specs Specification Details Model K8U-J3 Product Keychron K8 Ultra 8K Wireless Custom Mechanical Keyboard Configuration Fully assembled Color Black Layout 80% TKL Switches Keychron Apex Switch – Brown Hot-swappable Yes Connectivity 2.4 GHz, Bluetooth 5.2, USB-C wired Polling rate 8,000 Hz wired and 2.4 GHz; 125 Hz Bluetooth Bluetooth device switching Up to 3 devices Firmware and customization Open-source ZMK; Keychron Launcher web app Backlight South-facing RGB LED; 22+ settings, per-key RGB and Mix RGB Keycaps OSA double-shot PBT, non-shine-through Body material CNC aluminum and ABS Bottom case material ABS plastic Plate material Steel Stabilizers Screw-in PCB stabilizers Battery Rechargeable 4,000 mAh lithium-polymer Wireless working time Up to 760 hours with backlight off; up to 230 hours with RGB at lowest brightness Compatible systems macOS, Windows, Linux Dimensions 359.2 × 129.2 mm Front height 25.55 mm without keycaps Back height 31.28 mm without keycaps Feet height 1.5 mm Weight 1,299 g ± 10 g Operating environment −10°C to 50°C Bluetooth device name Keychron K8 Ultra 8K