Walmart WMBR-1

Overview
"CHAMPONTECH", "DA10_V2" and "05/20" are silkscreened on the board in the FCC photos.
 * "D9SHD" Micron FBGA code on the RAM corresponds to the MT41K256M16TW-107:P

"This bridge has been optimized to work with the Nortek GD00Z-7 Garage Door Opener"
 * - User Manual at the FCC