20211016 HP 2640 - jsheradin/kb_adventures GitHub Wiki

This board features ITW magnetic valve switches and monumentally thick doubleshot ABS keycaps. The switches bound and squeeked like a bag of mice prior to cleaning and lubing. The sheer inertia of the caps and magnets on the stems makes it a very interesting and smooth typing experience.

In the past MMcM did a nice job digging up documentation on the protocol and made a QMK based converter which thankfully works great.