How many cables are there in the USB data cable? What are their respective functions? There are 4 cables in the USB data cable, including red line, white line, green line and black line. Let's understand the specific functions below.
Red wire: positive pole of power supply (the mark on the wiring is + 5V or VCC)
White line: negative voltage data line (identified as data - or USB port -)
Green line: positive voltage data line (marked as data + or USB port +)
Black wire: grounding (marked as: ground or GND).
Of course, the color of the wire can only be seen when peeling off the outer rubber of the data line or charging line.
copyright © Dongguan Shunhui Electric Products Co., Ltd