Keychron K9 Max

The K9 Max is the smallest low-profile K-series board with a dongle. Keychron lists a 60% layout with 61 keys, 2.4 GHz plus Bluetooth for up to three devices plus wired at 1000 Hz, hot-swappable Keychron low-profile Milk POM switches, an ABS frame, low-profile double-shot PBT keycaps, QMK/VIA with the Launcher, a 1550 mAh battery rated up to 73 hours and about 426 g.

No review of the K9 Max was found. Android Police's K7 Max review, on the 65% sibling, found a premium feel with hardly any deck flex and noticeable foam, and cautioned that only low-profile switches fit.

It drops the arrow cluster of the K7 Max, and at 426 g it is lighter than the K7 Max's 436 g.

Versions: this page also covers the K9 Pro, which has the same 287 x 97.5 mm 60% footprint. Per Keychron's page, the K9 Pro is Bluetooth 5.1 and wired only, with no 2.4 GHz dongle, uses Gateron low-profile switches rather than Milk POM, has an ABS and aluminum-frame tray-mount case and weighs 410 g, with a battery rated up to 100 hours with the backlight off. The K9 Max adds the dongle and Bluetooth 5.2.