The second number printed on the solder side at the insertion end
4105 D 00675
Printed on the solder side at the insertion end
Stamped into the face of the aluminum frame
Stamped into the side of the aluminum frame
overall: 1/2 in x 4 1/2 in x 7 in
The object has a brown board surrounded by an aluminum frame and a blue plastic connector. On one side there are various components including transistors, resistors, and capacitors. On the solder side there is a printed circuit with a grid lettered A-Z.