K1D8389-1CC Control Board used for 2016 and on
Liftmaster RSL12U/RSW12U AND CSW24U/CSL24U units.
Backwards compatible for older second generation DC units but will require monitored safety edge or safety eyes.
See LMRRUL eye or S505AL Safety edge
Note: When upgrading older CSL24V and CSW24V units use upgrade kit K76-38252
which includes this board, expansion board and wire harness.