QWK Challenger Mk3 (STANDARD) Circuit board Replacement

QWK Challenger MK 3 Circuit board replacement for the STANDARD version of the QWK Challenger MK3.

The program inside this circuit board is only compatible with the STANDARD gearbox of the QWK Challenger MK3.

Only works on the STANDARD QWK Challenger MK3, WILL NOT WORK WITH THE PRO/PRO MAX.