ITEM NAME:PL2303TA USB to TTL RS232 Module Upgrade Module USB to Serial Port Download L-ME Description: Line Sequence Definition: Red + 5V, Black GND, White RXD, Green TXD Quantity: 1 piece Packaging includes: 1 pcs debug USB to TTL cable.1 pcs debug USB to TTL cable. Line Sequence Definition: Red + 5V, Black GND, White RXD, Green TXD.