USB: The USB to serial adapter supports USB 1.1 and it is compatible with USB 2.0 and USB 3.0 ports. RS-232 SERIAL CONNECTOR: Connect RS-232 serial devices, such as modems or printers, using the widely supported USB standard found in most laptops and desktops today. SUPPORTED OPERATING SYSTEMS: The USB to serial converter adapter is compatible with Windows and Mac operating systems. Windows 10, 8.1, 8, 7. Mac OS 10.11, 10.10, 10.9, 10.8, 10.7, 10.6 FLEXIBLE CABLE: Integrated and flexible 540mm (21 in.) USB 2.0 cable accommodates most installation scenarios. Total cable length of 25 inches when including the RS-232 (9pin) and USB Type A. EASY SETUP: Simple installation in seconds of the USB to Serial 9-Pin Converter Cable. Insert the your computer