SABRENT CB-RS232 USB to RS232 Serial DB9 Male Port Converter Cable Interface: USB - 1.1 Type A RS-232 (9-pin) Male Supported OS: Windows 7 (32/64-bit)/Vista (32/64-bit)/XP(32/64-bit)/ 2000/ME/98SE Mac OS 10.1~10.6 Install as a standard Windows COM port, full RS-232 modem control signals, RS-232 data signals, TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND Easy Plug and Play installation with 1 YEAR limited warranty