Found on top on black component on front of module
overall: 2 1/2 in x 5 1/2 in
This is a B163 module with green board and a blue plastic extraction handle attached by two rivets. The component side is marked with two inspection stamps; "FLIP CHIP" can be read through the board between the rivets. "DIODE GATE B163D" is stamped on the solder side.