PL2303 TA Download Cable USB to TTL RS232 Module Upgrade USB to Serial Port Download Cable 4pin

Built-in TTL COM PC-PL2303HX chip
Standard USB type with TTL 4-pin connector
Easy USB integration for designs
Compatible with Linux, Mac, WinCE, and Windows (XP, 7, 8)
Applications
Single-chip upgrade for RS232 to USB
USB to RS232 converters, cables, and dongles
Healthcare/Medical USB data transfer cable
Media player docking USB interface
Cellular/PDA USB data transfer cable
Serial-over-IP wireless solution
USB barcode/smart card readers
GPS/Navigation USB interface
POS terminals and printers
PC docking station/port replicators
Industrial automation USB interface
Pin Connection
Red: +5V
Black: GND
White: RXD
Green: TXD