The 20021311-00040T4LF from Amphenol Communications Solutions is through hole mounting rectangular connector, receptacle with female sockets, 40 position, 2 rows, 0.050" (1.27mm) pitch, push-pull fastening and solder termination. This connector has phosphor bronze contacts with 10.0µin (0.25µm) gold mating / 100.0µin (2.54µm) tin post contact finish and black plastic housing. Operating temperature range is from -40°C to 105°C.