This is a USB to Serial TTL Converter.

Key Features:
- Based on Prolific PL2303Hx chip
- 5V Operation
- Driver support for Windows, Windows CE, MAC OS 8,9,X and Linux
- Compact Shell Cover
- 1 meter long cable
- 4 way JST connector (GND,TX,RX,DTR)
- Those who require the use of VCC/CTS/RTS/RI/DSI etc. may open the shell cover to locate required pads. (Disclaimer: No technical support will be given should you need to modify this converter, Items sold are meant to be used as-is)
PinOut:
GND = Black Wire
TX = Yellow Wire
RX = Green Wire
DTR = Blue Wire
Items in the set:
- 1x USB to RS232/UART Convertor
Shell Dimensions: 1.7 * 5.5 cm
Detailed Information:
Driver Download: Prolific Drivers
Driver Installation Instructions: Download Driver & Install BEFORE Plugging in the device!!!