Printed on the solder side of the board near 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
One side of the board contains various active and passive components. The board is surrounded by an aluminum frame and a blue plastic 22 pin male connector. There are two inspection stamps on the component side of the board. "Drum NRZ WRITER 4518 C" is printed on the solder side at the insertion end above the grid lettered A-Z.