This TRENDnet TU-S9 USB to Serial Converter is a must-have for anyone who needs to connect a device with a serial port to a computer with a USB port. With a USB 1.1 connector on one end and an RS-232 male DB9 serial cable on the other, this cable is compatible with TU-S9 and DB9 models. Whether you are working in networking or industrial automation, this cable will provide a reliable and speedy connection. The cable is made by TRENDnet, a trusted brand in computer cables and connectors.