USB to Serial Adapter Cable for connecting RS-232 devices with D sub connectors such as terminals printers and scanners to modern computers with USB Type A sockets. Specification FTDI Chipset 1.2m USB A to D9 male connectors USB Bus Powered Supports USB2.0 Backwards compatible with USB1.1 and 1.0 Supports Windows 10 8 and Linux Transmission Speed: 2400-115200bps Supports RS-232 Serial Interface