Keychron

Keychron K4 Ultra 8K Wireless Custom Mechanical Keyboard

Full SizeHot-swappableUSB-C + Bluetooth + 2.4GHzStandard Profile
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Keyboard Overview

Keychron K4 Ultra is a wireless custom mechanical keyboard with a sleek, durable build. It supports 2.4 GHz, Bluetooth, and wired connections. Through the Keychron Launcher web app, users can remap keys and create macro commands on its 96% compact layout. Powered by ZMK firmware, it enables an 8K polling rate in wireless mode while delivering up to 600 hours of battery life. It is also fully compatible with Windows, macOS, and Linux.

Official Site

Last Updated: September 7, 2026

Specifications

Physical Specifications

Layout
Full Size
Key Count
100
Width
391.29mm
Depth
140.27mm
Height
30.87mm
Weight
1.24kg

Mount Type

Case Material
ABS
Plate Material
Steel
Hot-swappable
Yes
Connectivity
USB-C + Bluetooth + 2.4GHz
RGB Support
Yes
Keybinding
Custom

Keycap Profile

Keycap Profile
OSA
Keycap Material
PBT
Keycap Printing Method
Double-shot
Keycap Included
Yes

Default Switch

Switch Profile
Standard Profile
Switch Profile
Keychron Apex Switch

Other

Battery Capacity
4000mAh
Battery Life
600 hours

Vendor Information

Vendor Information

keychron

114.99 USD
Note: Price information may not be accurate. Please verify the current price on the vendor's website.
in stock
Last Updated: 9/17/2026

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