Keychron K3 Ultra 8K White 75% Wireless Mechanical Keyboard with Red Linear Switches, Hot-Swappable Keys, Per-Key RGB, ZMK, 2.4 GHz, Bluetooth 5.2 and USB-C

Keychron K3 Ultra 8K White 75% Wireless Mechanical Keyboard with Red Linear Switches, Hot-Swappable Keys, Per-Key RGB, ZMK, 2.4 GHz, Bluetooth 5.2 and USB-C

79 $

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Expert Features

  • Ultra-Slim 75% Layout: A compact 84-key layout keeps the function row and arrow keys while taking up less desk space.
  • 8K Performance: Get an 8,000 Hz polling rate over USB-C wired or 2.4 GHz wireless; Bluetooth polling is 125 Hz.
  • Three Connection Modes: Switch between 2.4 GHz, Bluetooth 5.2, and USB-C wired connections. Bluetooth supports pairing with up to three devices.
  • Keychron Milk POM Red Switches: Linear low-profile mechanical switches provide a smooth, consistent keystroke feel.
  • Hot-Swappable Switches: Change compatible switches without soldering to tailor the typing feel.
  • Customizable ZMK Controls: Remap keys, create macros, and adjust settings with the Keychron Launcher web app.
  • Per-Key RGB: Customize the north-facing RGB backlight with more than 22 lighting settings, including static white and Mix RGB.
  • Long Battery Runtime: The 2,600 mAh battery provides up to 550 hours with the backlight off; runtime varies with settings and use.
  • Mac, Windows, and Linux Ready: The keyboard supports all three operating systems and includes alternate keycaps for different layouts.
  • PBT Keycaps, Aluminum and Wood Frame: Low-profile double-shot PBT keycaps sit above an aluminum-and-wood body for a distinctive desk setup.

Expert Specs

Specification Details
Model K3U-Q1Z
Product Keychron K3 Ultra 8K Wireless Custom Mechanical Keyboard
Configuration Fully assembled
Color White
Layout 75% compact
Switch Keychron Milk POM Red, low-profile linear mechanical
Hot-swappable Yes
Connectivity 2.4 GHz wireless, Bluetooth 5.2, USB-C wired
Polling rate 8,000 Hz wired and 2.4 GHz; 125 Hz Bluetooth
Bluetooth device capacity Up to 3 paired devices
Firmware and customization ZMK; Keychron Launcher web app
Backlight North-facing RGB LED; 22+ settings, per-key RGB and Mix RGB
Keycaps LSA double-shot PBT, non-shine-through
Body material Aluminum and wood
Plate material Anodized aluminum alloy
Bottom case material ABS plastic
Stabilizers Plate-mounted
Battery Rechargeable 2,600 mAh lithium-polymer
Wireless working time Up to 550 hours with backlight off
Compatible systems macOS, Windows, Linux
Dimensions 320.62 × 126 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
Bluetooth device name Keychron K3 Ultra 8K

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