Green-utech PL2303TA 6ft Usb Rs232 Serial to 3.5mm Stereo Aj Cable New Geniune Original PL2303TA Prolific Chipset . Top Great Quality . 100% Test PL2303TA chip usb rs232 to 3.5mm stereo serial cable 3.5mm 3P audio jack male. It is RS232 Cable , Not TTL UART Cable Standard Pinout : Tip-Rx, Ring-Tx, Sleeve-GND Support Win XP/9X/,Win 7, Linux, CE, etc. For driverdownload, please visit this official website : http://www.prolific.com.tw