... the computer.Output: RS232 port to serial devices.Full compliance with USB 1.1 & 2.0 specificationEasily convert RS232 interface device ... for upstream and downstream data flow.Installed as a standard Windows COM port,RS-232 data signals; TxD, RxD, RTS, CTS ... .upports the following Operating Systems.Win 98/Me or above, Windows CE.NET (Version 4.2 and greater), Windows2000/2003/WindowsXP32/64 ...