Connects any serial device with a DB9 female port to your computer USB-C port. Supports all RS232 serial devices such as printers, modems, barcode scanner, POS, set-top boxes and alarm control panels. When 2 or more UR-2000M2C are used, Windows will dynamically assign available COM RS232 port. Works with Windows 98, 98SE, ME, 2000, XP, Vista, 7, 8/8.1, 10, 11, Mac OS X, Linux and Android. (Connectors: USB-C Male to DTE DB9 Male; Length: 6ft)