The cable is 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 (Prolific PL2303) and at the end of the 36" cable are four wire - red power, black ground, white RX into USB port, and green TX out of the USB port. The power pin provides the 5V @ 500mA direct from the USB port and the RX/TX pins are 3.3V level for interfacing with the most common 3.3V logic level chipsets.
Fully enclosed professional finish.
Built-in PL2303 USB to Serial Controller
Designed to be used for USB to TTL electronic projects
TTL interface output, easy to connect to your MCU
Dual 3.3V and 5V Power output (by Changing the red wire termination)
Can independantly power the circuit with 5V or 3.3V
1xUSB to TTL Serial Cable