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RECEIVER LOGIC BOARD, SECURITY+ 2.0
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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.