Liftmaster 45ACT 41D7675 Circuit Control Board Garage Opener 8557 8065 8355 8165

045ACT is a Security+ 2.0® Receiver Logic Board Replacement Kit. For use with various LiftMaster® and Chamberlain® AC Chain Drive and Belt Drive Garage Door Openers; manufactured after 2011 only. The unit will feature a yellow learn button. Check the owner's manual or replacement parts diagram for specific part information before ordering to ensure compatibility.