This is a circuit board with a printed copper circuit. At one end is a blue plastic pinned interface with a hinged clip. "HI. PHYSIKALISCHES INSTITUT LEHRSTUHL B T.H. AACHEN" is printed in copper to the lower right of the clip. Half way down the circuit there are soldered joins, which connect to printed circuit lines on the reverse side. On the reverse side are additional soldered joints toward the top, which attach to the pins on the obverse face. "Cable Connector card" is printed at the top left edge of the board.
