Keychron K4 QMK Wireless Mechanical Keyboard (Version 3)-US ANSI Layout PT-SIO and UK ISO layouts) is

and UK ISO layouts) is an ultra-slim wireless

The Aluminum plate of Keychron V6

This low profile LSA (low profile spherical-angled) PBT keycap set has all the keycaps you needed for the ANSI layout K1 version5

The Barebone version

Keychron K4 QMK Wireless Mechanical Keyboard (Version 3)-US ANSI Layout PT-SIO and UK ISO layouts) isKeychron K4 QMK Wireless Mechanical Keyboard (Version 3) allows anyone to master any keyboard keys or macro commands through Keychron Launcher web app, it has included keycaps for both Windows and macOS, and users can hot swap with any MX mechanical switch in a breeze. No discount code can be used for the K4 Version 3. Please drop your email on "Notify Me When Available" if the product model is out of stock.