Keychron K2 Pro

The K2 Pro is the QMK/VIA version of the K2. Keychron lists a 75% layout, hot-swap K Pro switches, a tray-mount case that is either ABS (940 g) or ABS with an aluminum frame (1070 g), a steel plate, PCB-mounted screw-in stabilizers, double-shot PBT keycaps in OSA profile, a 4000 mAh battery, and 1000 Hz polling when wired but 90 Hz over Bluetooth. Bluetooth supports up to three devices; there is no 2.4 GHz dongle. The fully assembled black version is not hot-swappable and has no sound-absorbing foam.

EnosTech called the K2 Pro a no-frills board with everything most users need, noted the OSA keycaps take some getting used to, found the 75% layout slightly cramped around the arrow keys, and liked the three-device Bluetooth and two-level feet. Tom's Hardware reviewed the K8 Pro, which shares this platform, and was harsher: the OSA keycaps felt slick, Bluetooth performance was poor, and the tray mount made the typing feel stiff and the sound inconsistent despite added foam. Treat those as platform-level cautions rather than K2 Pro measurements.

Next to the K2 Max, the Pro lacks the 2.4 GHz dongle; next to the original K2, it adds PBT keycaps, a steel plate and QMK/VIA.