The StarTech Slimline Serial DB9 gender changer is a reliable way to convert a nine-pin female port to a nine-pin male port. StarTech Slimline Serial DB9 gender changer Gender changer transforms a nine-pin female port to a nine-pin male port. DB-9 nine-pin and D-sub male connector on both ends. Simple to use and install. Meets RoHS, FCC and CE Compliance. Lifetime warranty.