Fully tested working! Includes the 4-pin Logic Scan type hall sensor and a removal tool (to be used from the bottom of the keyswitch - we don't have anything yet that works for the top side.) The hall sensor "chip" points toward the thin side of the switch. NOTE: Multiple item listing - your part may have different markings or date codes, but will be in similiar or better condition. This is a good used component.
eBay