5~15x USB To RS232 TTL UART PL2303HX Auto Converter USB to COM Module Cable 4Pin
PL2303 PL2303HX USB to UART TTL Cable Module 4p 4 pin RS232 Converter. USB To RS232 TTL UART PL2303HX Auto Converter USB to COM Cable Adapter Module. Wire sequence is defined. Red Wire == VCC, (+5V). Black Wire ==GND.