Stamped into the front of the frame near the manufacturer's label
Stamped into the aluminum frame on side
overall: 1/4 in x 4 1/2 in x 7 in
The object has a green board surrounded by an aluminum frame and a blue plastic connector. On one side there are several components including two transistors, four capacitors, and several diodes and resistors. On the solder side there is a lettered grid A-Z near the insertion end of the board.