USB To RS232 TTL UART PL2303HX Auto Converter USB to COM Module Cable HSFeatures:
Flashing method: Flashing requires only three wires, generally used only three signal lines RX TX GND.Note: When setting VCC (3.3V or 5.0V) output (power supply for the microcontroller devices , not for Flashing or upgrading method)please remove this device from the computer (USB port) then set the jumper or weld the wire, do not when this item is plug in.
Specifications:
Packing Content: