Keychron K3 Ultra 8K 75% Wireless Mechanical Keyboard, Black, Milk POM Brown Switches, 8000 Hz, Bluetooth 5.2, USB-C, RGB, Hot-Swappable

Expert Features 75% Ultra-Slim Layout: Keep a compact desk setup while retaining the function row and arrow keys. Milk POM Brown Switches: This K3U-H3 variant has tactile, low-profile Brown switches for a noticeable bump while typing. 8000 Hz Polling: Polls at 8000 Hz over wired and 2.4 GHz modes; Bluetooth polling is 125 Hz. Three Connection Modes: Connect through 2.4 GHz wireless, Bluetooth 5.2, or USB-C wired. Connect Up to Three Devices: Bluetooth supports pairing with up to three devices. Hot-Swappable: Change compatible Keychron Milk POM low-profile switches without soldering. ZMK and Keychron Launcher: Customize keymaps, macros, shortcuts, backlighting, and firmware through Keychron Launcher. Up to 550 Hours of Battery Life: Keychron’s rated runtime is up to 550 hours with the backlight off; actual use varies. Low-Profile LSA Keycaps: Non-shine-through, double-shot PBT keycaps offer a durable low-profile typing surface. RGB Customization: North-facing RGB LEDs offer 22+ settings, including static white, with per-key and mixed-zone customization. Wood and Metal Frame: Natural wood accents pair with a metal frame for a distinctive slim build. Windows, macOS and Linux Support: Compatible with all three systems and includes Mac and Windows keycaps. Expert Specs Specification Details Brand Keychron Model K3 Ultra 8K Wireless Custom Mechanical Keyboard SKU K3U-H3 Variant Fully Assembled, Black, Keychron Milk POM Brown Layout 75% compact Switch type Low-profile Keychron Milk POM Brown mechanical switches Hot-swappable Yes; Keychron Milk POM switches Keycaps LSA double-shot PBT, non-shine-through Body material Aluminum + wood Bottom case material ABS plastic Plate material Anodized aluminum alloy Stabilizer Plate-mounted Backlight North-facing RGB LED; 22+ settings, including static white Connectivity 2.4 GHz, Bluetooth 5.2, Type-C wired Polling rate 8000 Hz wired and 2.4 GHz; 125 Hz Bluetooth N-Key Rollover (NKRO) Yes, wireless and wired Bluetooth device capacity Up to 3 devices Bluetooth device name Keychron K3 Ultra 8K Battery 2600 mAh rechargeable lithium-polymer Listed wireless working time Up to 550 hours with backlight off at 8K; actual use varies Compatible systems macOS, Windows, Linux Dimensions 320.62 × 126.00 mm Front height 16.55 mm without keycaps Back height 20.1 mm without keycaps Feet height 2 mm Weight 566 g ± 10 g Operating environment -10°C to 50°C