Keychron V4

The V4 is the 60% member of the original V line. Keychron's spec page lists an ABS plastic case with a tray mount and steel plate, hot-swap sockets for 3-pin and 5-pin switches, screw-in PCB stabilizers, south-facing RGB, Keychron K Pro switches and double-shot OSA PBT keycaps. It is wired (USB-C, 1000Hz) and runs QMK with the Launcher web app. Keychron lists 730 g and 303.85 x 117.09 mm, with flip-out feet for three angles.

Expert Reviews used the V4 as its test board for the V Series and called the build superb. It described a solid sandwich of ABS top and bottom case, a very stiff steel plate and a silicone pad, and linked that stiffness to an accurate typing action. It liked the OSA keycap shape and the VIA and Vial support (five layers, with 22 effects in VIA) and called the V4 an outstanding affordable mechanical keyboard. Its reservations were the high profile, with the bottom row sitting about 4 mm higher than on its Cherry G80, and the lack of a wrist rest.

One owner's blog (Thomas' Notes) chose the V4 for the 60% layout and found the stock K Pro Brown switches tactile but not quiet, so he replaced them. He found remapping in VIA easier than compiling QMK firmware, though he could not find a way to customize the RGB lighting in VIA. A 60% board has no dedicated arrow or function keys, so anything beyond the letters sits on a layer.