Ventisonic PL2303HX USB To TTL To UART RS232 COM Cable Module Converter Built-in TTL COM PC-PL2303HX Chip. Standard USB type A male and TTL 4 pin connector. Simple and Easy way to give USB support to your designs. Available for Linux, Mac, WinCE and Windows (XP, 2003), Vista, Win 7. Package included: 1 x PL2303HX COM Cable.