The general arrangement of USB interfaces is: red, white, green and black from left to right
Red - USB power supply: (positive) marked with -VCC, Power, 5V, 5VSB< /p>
White-USB data cable: (negative)-DATA-, USBD-, PD-, USBDT-
Green-USB data cable: (positive)-DATA+, USBD+, PD+, USBDT+
Black - Ground wire: (negative) GND, Ground
Extended information
The USB interface is also called the serial port, and the speed of USB2.0 can Reaching 480Mbps, USB is a commonly used PC interface. It has only 4 wires, two for power and two for signals, so the signals are transmitted serially.
It can meet various industrial and civilian needs. The output voltage and current of the USB interface are: +5V 500mA. There is actually an error, and the maximum cannot exceed +/-0.2V, which is 4.8-5.2V.
The four wires of the USB interface are generally allocated as follows. It should be noted that the positive and negative poles must not be reversed, otherwise the USB device or the south bridge chip of the computer will be burned: black wire ：gnd Red line: vcc Green line: data+ White line: data-
Reference materials
USB interface—Baidu Encyclopedia