SKU: K8U-J1

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

$ 87.00

Description

Expert Features

  • 80% TKL Layout: Keeps essential keys while removing the number pad, freeing up more space for mouse movement.
  • 8K Polling: Supports an 8,000 Hz polling rate in 2.4 GHz wireless and wired modes; Bluetooth polling is 125 Hz.
  • Three Connection Modes: Connect over 2.4 GHz, Bluetooth 5.2, or USB-C wired. Bluetooth supports switching between up to three devices.
  • Keychron Apex Red Switches: The pre-lubed mechanical switches come installed on this fully assembled model.
  • Hot-Swappable Design: Change compatible switches without soldering.
  • ZMK and Keychron Launcher: Remap keys, create macros, and customize settings using the Launcher web app.
  • Per-Key RGB: Personalize the lighting with more than 22 RGB settings, including per-key RGB and Mix RGB.
  • Long Battery Runtime: The 4,000 mAh battery supports 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.
  • PBT Keycaps: OSA double-shot PBT keycaps are designed to resist oil and keep their legends from fading.
  • Mac, Windows, and Linux Compatible: Switch between supported systems; the package includes Mac and Windows keycaps.

 Expert Specs

SpecificationDetails
ModelK8U-J1
ProductKeychron K8 Ultra 8K Wireless Custom Mechanical Keyboard
ConfigurationFully assembled
ColorBlack
Layout80% TKL
SwitchesKeychron Apex Switch – Red
Hot-swappableYes
Connectivity2.4 GHz, Bluetooth 5.2, USB-C wired
Polling rate8,000 Hz wired and 2.4 GHz; 125 Hz Bluetooth
Bluetooth device switchingUp to 3 devices
Firmware and customizationOpen-source ZMK; Keychron Launcher web app
BacklightSouth-facing RGB LED; 22+ settings, per-key RGB and Mix RGB
KeycapsOSA double-shot PBT, non-shine-through
Body materialCNC aluminum and ABS
Bottom case materialABS plastic
Plate materialSteel
StabilizersScrew-in PCB stabilizers
BatteryRechargeable 4,000 mAh lithium-polymer
Wireless working timeUp to 760 hours with backlight off; up to 230 hours with RGB at lowest brightness
Compatible systemsmacOS, Windows, Linux
Dimensions359.2 × 129.2 mm
Front height25.55 mm without keycaps
Back height31.28 mm without keycaps
Feet height1.5 mm
Weight1,299 g ± 10 g
Operating environment−10°C to 50°C
Bluetooth device nameKeychron K8 Ultra 8K