Startech ICUSB2321F, USB 2.0, Cable Adapters, Port-1, Data Bits 7,8, 256 Bytes, MTBF 836981.2 hours, Connector 1 - DB-9 (9 pin, D-Sub) Male, 1 - USB Type-A (4 pin) USB 2.0 Male, USB-Powered, Cable Length 6 ft [1.8 m], Plastic, Black, Included 1 - USB to RS-232 Serial Adapter, 1 - Driver CD, 1 - Instruction Manual. The ICUSB2321F 1-Port USB to Serial RS232 Adapter Cable with FTDI chipset and COM Retention converts an available USB 1.1 or 2.0 port into an RS232 serial DB9 port to connect, monitor and control your serial devices.