USB to RS232 TTL PL2303HX PL2303 USB to COM Converter Serial Adapter 4 pin
PL2303HX USB to TTL RS232 Series Adapter. 1 x PL2303HX USB to TTL RS232 Series Adapter. Turn any USB port into a TTL-level serial port with this handy adapter. Adapter for connecting your circuits to a PC through a virtual serial port.