Liftmaster Garage Door Opener Replacement Circuit Board 
LiftMaster 41A5021-5E Garage Door Opener Circuit Board Replacement Logic/Circuit board (receiver board) for Security+ operators made from 1997-current
For Liftmaster garage door opener Belt Drive operators
Replaces logic board models 41A5021-D, 41A5021-5E
Also compatible with Security+ systems from Chamberlain, Craftsman,Master Mechanic, Sears and Wayne Dalton
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