PL2303 TA Download Cable USB to TTL RS232 Module Upgrade USB to Serial Port Download CableProduct DescriptionThe easiest way ever to connect to your microcontroller/Raspberry Pi/WiFi router serial console port. Inside the big USB plug is a USB;Serial conversion chip and at the end of the cable are four wires - red power, black ground, white RX into USB port, and green TX out of the USB port. Because of the separated pin plugs, this cable is ideal for powering and connecting up to the debug/login console on the Raspberry Pi. Connect the pins as shown to power the Pi and establish the RX/TX link
PL2303 TA Download Cable USB To TTL RS232 Module Upgrade USB To Serial Port Download Cable