StarTech Model SCNM9FF 10 ft. Cross Wired Serial/Null Modem Cable DB9 F/F F-F Type: DB9 Type: Cable Connectors Color: Gray Connector Number: 2 Connector Detail: Connector A: 1 - DB-9 (9 pin; D-Sub) Female x0AConnector B: 1 - DB-9 (9 pin; D-Sub) Female Specifications: The SCNM9FF 10ft Cross Wired Serial/Null Modem Cable features two DB9 female connectors, allowing you to connect a serial printer to a 9-pin serial port, or transfer files from PC to PC via serial connection. Electrical Outlet Plug Type: Plug Type xE2 x80 x9CA xE2 x80 x9D (USA, Canada, Mexico, Japan)