Item Features: 

Utilizing PL2303hx 

Bolster windows 8 

Backings three power modes: 5V outer power supply; 3.3V outside power supply; remotely controlled (requires 3.3V-5V) 

With 3 LED: TXD LED, RXD LED, POWER LED 

Applications: 

RS-232 to USB update conventional gadgets 

USB to RS-232 sequential connector 

Guidelines for use: (to get to the MCU for instance) 

VCCIO: Output 3.3V or 5V (USB-controlled module bounce, jumper will 3.3V or 5V) 

GND: GND association 

TXD: pick MCU.RX (flag stream: MCU.RX << PL2303 << PC.TX) 

RXD: pick MCU.TX (flag stream: MCU.TX >> PL2303 >> PC.RX)