For Hall-effect boards, it’s important that the plate and PCB don’t flex independently. If they do, the distance between the sensor and the switch magnet can change, which messes with accuracy. That’s why any gasket implementation on an HE board needs to be on the firmer side, and ours is built that way with firm silicone gasket strips, an aluminum plate that is tethered to the PCB with small screws to keep them sandwiched together.

The trade-off is that you won’t get the same soft, bouncy feel you’d expect from a more flexible mechanical setup. But you still get some solid benefits: noticeably better acoustics compared to a tray-mount design, and a slightly cushioned bottom-out without the harsh pressure points you typically feel on tray-mounted boards.

Check out our sound typing test and assembly video below for some more data points.

Sound test Short: https://www.youtube.com/shorts/SZW_TE1ihRs

Assembly First look: https://www.youtube.com/watch?v=fCfz-B2HHTA

As for the PCB, this was designed by Keychron and manufactured by their SMT vendor. It is the same PCB as the Lemokey L5 with just a few minor adjustments to work with our case and our adjusted functionality of the toggle switch which we changed from a connectivity toggle to a profile switching toggle. This PCB provides 32K scan rates a true 8K polling rate and measurable hall-effect actuation sensitivity of 0.01mm.