K8U-J4
KEYCHRON K8 ULTRA 8K WIRELESS MECHANICAL KEYBOARD/HOT SWAP/RGB/ALUMIN BANANA SWITCH-BLK NE
Keychron K8 Ultra 8K Black TKL Wireless Mechanical Keyboard with Banana Switches, Hot-Swap, RGB, ZMK, 8K Polling, 2.4 GHz, Bluetooth 5.2, USB-C and CNC Aluminum Frame
88 $
Expert Features
- 80% TKL Layout: Keeps essential keys while removing the number pad, freeing space for mouse movement.
- 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 Banana Switches: The Banana switch option comes pre-installed 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: Compatible with these systems; Mac and Windows keycaps are included.
Expert Specs
| Specification | Details |
|---|---|
| Model | K8U-J4 |
| Product | Keychron K8 Ultra 8K Wireless Custom Mechanical Keyboard |
| Configuration | Fully assembled |
| Color | Black |
| Layout | 80% TKL |
| Switches | Keychron Apex Switch – Banana |
| 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 |
