SD9S is a DB9 female solder cup D-Sub connector. Many "do it yourself" users prefer solder style D-sub connectors over crimp style. These DB9 connectors conform to commercial industry standards and will mate with any opposite gender DB9 contact. Contact plating is gold flash, connector insulator is UL94V-0 rated. Will ship immediately if in stock. Applications include serial data transmission, data networks, instrument control and device management.