Test connector for the Block II Apollo Guidance Computer (AGC), measuring 2.75˝ x 2˝ x 1˝, manufactured by Raytheon and labeled: "Connector, NASA No. 2003099-011, Mfd by Raytheon Co., S/N RAY 56." This 'terminator' connector has no outputs, and features pins on the rear that would plug into a port on the AGC during research and testing procedures. It has captive screws in each corner to fasten it to the connector on the computer, and red text— "This side out" and "Assemble with this side out"—to ensure its proper orientation.