Since the Keychron K2 uses Gateron switches, a clone of the Cherry MX, any keycap that fits a Cherry stem should work with the K2's Gaterons. But keep in mind that ABS keycaps, in general, can wear down and get shiny over time - thankfully, you can easily replace the K2's keycaps with ease, and Keychron includes a wire keycap puller in the box (to replace the Mac keys with Windows if needed). The default gray ABS keycaps that it comes with (unless you get the PBT keycap version) are slightly curved, giving it a nice, tactile feel as you type. Keychron K2 is a compact mechanical keyboard with Bluetooth wireless compatibility and geared for Mac users out-of-the-box. But since it's a 75% layout, it's smaller and more compact than others, making this an excellent option for traveling. The Keychron K2 V2 has a design that lines up with what you would expect from a mechanical keyboard - straight and flat edges on the frame, with slim bezels around the keys themselves.

Keychron K2 V2 Flat (Image credit: Christine Romero-Chan / iMore)

Keychron k8 review youtube