$61.99 Liftmaster 050DCTWF DC Logic Board for Models 8550W WiFi Opener - Walmart.com
Liftmaster 050DCTWF 315MHz Security+ 2.0® Receiver Logic Board Wi-Fi MyQ 601818722124 | eBay
Chamberlain Liftmaster 050DCTWF Garage Logic Board Yellow Learn w/Bulb Bottom | eBay
