Product Type: USB to TTL cable;
Features: Built-in PL2303 chip, support windows XP/7/8/ 8.1 /10;
Interface specifications: USB type A male port, 4PIN 2.54 mm interface;
Interface definition:
Red: VCC (5V);
Black: GND;
Green: TXD (connected to external RXD);
White: RXD (TXD connected to external device);
Interface features: 3.3V TTL level