Keychron J4 QMK Wireless Mechanical Keyboard (US ANSI Layout) Wireless Mouse it enables an 8K polling

it enables an 8K polling rate in wireless mode while delivering up to 550 hours of battery life

*DC-5 is not

The K2 HE is compatible exclusively with the Gateron Double-Rail Magnetic Switch

but rest assured the keyboard still works as normal

The aluminum plate of Keychron Q3

Keychron J4 QMK Wireless Mechanical Keyboard (US ANSI Layout) Wireless Mouse it enables an 8K pollingKeychron J4 is a wireless custom mechanical keyboard. It supports 2. 4 GHz, Bluetooth, and a wired connection. It allows anyone to master any keys or macro commands on its 80% TKL layout through Keychron Launcher web app. Besides, users can hot swap with Keychron Super mechanical switch in a breeze (hot swappable version only). No discount code can be used for the J4. Please drop your email on "Notify Me When Available" if the product model is out of