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OPEN BOX UNUSED LiftMaster 050DCTBLKMC Receiver Logic Board Replacement for garage door openers. This Bluetooth-enabled logic board is designed for units with lock functionality and serves as a direct replacement for models 050DCTBLKMC, 050DCTBMC, DCTBLK, and DCTWFLK. Manufactured in April 2022, this genuine OEM part includes the internal gateway for myQ connectivity. It comes with the original installation manual and a replacement serial number label to ensure seamless integration with your existing myQ account and warranty maintenance. Ideal for restoring full functionality, including obstruction notification and secure lock features, to your compatible LiftMaster system.