USB to Serial Adapter Cable for connecting RS-232 devices such as terminals printers and scanners to modern computers with USB Type A sockets. The FTDI chip offers support for legacy devices with modern computers. Commonly used to connect a serial null modem to a PC without a 9pin serial port (e.g. for updating satellite receivers). Compatible with USBv1.1 or USBv2.0. Can be configured to be any COM port (default usually COM4) using drop down menu within the setting within Device Manager (Control Panel/System/Hardware). 1m Cable USB Bus Powered Supports USB2.0 Backwards compatible with USB1.1 and 1.0 Supports Windows 10 8 Linux and MAC OS 9.1 or above Transmission Speed: 2400-115200bps Supports RS-232 Serial Interface.