Layout: 75%
Connectivity: 2.4 GHz, Bluetooth, wired; 8000 Hz polling rate
Switches: Keychron Milk POM Red / Brown / Banana; hot-swappable
Build: Aluminum + Wood, Anodized Aluminum Alloy plate
Keycaps: LSA double-shot PBT keycaps, non-shine-through
Battery: 2600 mAh, up to 550 hours
Software: ZMK firmware; Keychron Launcher web app for key remapping and macros; works with macOS, Windows, Linux
Backlight: North-facing RGB LED
Weight: 566 g ± 10 g
Dimensions: 320.62 x 126.00 mm
N-key rollover: Yes (wireless & wired)
Keychron K3 Ultra 8K is an ultra-slim wireless custom mechanical keyboard. It supports 2.4 GHz, Bluetooth, and a wired connection. It allows users to customize any key or macro command on its 75% compact layout through the Keychron Launcher web app. Powered by ZMK firmware, it enables an 8K polling rate in wireless mode while delivering up to 550 hours of battery life. In addition, it includes LSA (low-profile spherical-angled) keycaps and is fully compatible with Windows, macOS, and Linux.
https://www.keychron.com/cdn/shop/files/Keychron-K3-Ultra-8K-Wireless-Custom-Mechanical-Keyboard-12.jpg
2.4 GHz & Bluetooth Connection
Experience the advantage of an 8000 Hz polling rate in both wired and 2.4 GHz modes, delivering ultra-responsive, pro-grade precision for competitive gaming. For seamless multitasking, Bluetooth 5.2 allows you to switch effortlessly between up to three devices. From extreme speed to wireless convenience, the K3 Ultra 8K delivers it all.
550 Hours of Use on a Single Charge
Don’t wait for a full charge—use it even while charging and enjoy uninterrupted performance with an impressive battery life of up to 550 hours (with the backlight off).
Ultra-slim
Featuring an ultra-thin 11.9mm low-profile switch, the K3 Ultra achieves a sleek front edge profile of just 20.0mm, making this wooden-bodied device one of the thinnest wireless mechanical keyboards in the world while still delivering a distinguished tactile response.
https://www.keychron.com/cdn/shop/files/Keychron-K3-Ultra-8K-Wireless-Custom-Mechanical-Keyboard-Ultra-slim_a0157d0e-5fd6-4064-b780-79a5a48c2abc.jpg
Keychron Milk POM Switch
Crafted with advanced self-lubricating POM and POK materials, the Keychron Milk POM Switch delivers an impressively smooth feel right out of the box and becomes even smoother over time with every keystroke. Pre-lubed for added consistency and paired with a deeper, more resonant thock in a low-profile design, it offers a refined and reliable typing experience across linear Red and tactile Brown or Banana switch options.
https://www.keychron.com/cdn/shop/files/Keychron-Milk-POM-Switch.jpg
Hot-swappable
Since everyone has unique typing preferences, the K3 Ultra features a hot-swappable design. You can easily swap out every Keychron Milk POM switch in seconds to customize your experience—no soldering required.
Powerful ARM Core
An Epic Core Inside
A powerful ARM architecture MCU equipped with
