Do you know how many cores a USB cable has?
Several cores generally refer to the cable, which refers to the existence of several mutually insulated wires in the insulating outer skin. How many cores count as one if they are not insulated? So how many cores does a USB cable have?
USB is a common PC interface, it only has 4 wires, that is, it has 4 cores. Two power supply two signals, so the signal is serial transmission, USB interface is also called serial port, USB2.0 speed can reach 480Mbps, can meet a variety of industrial and civil needs.
The overall arrangement is: red, white, green, and black from left to right.
Red USB power supply: marked with the words -VCC, power, 5V, 5VSB.
White USB cable: (negative) -data-, USBD-, PD-, USBDT-.
Green USB cable: (positive) -DATA+, USBD+, PD+, USBDT+.
Black-ground: GND, Ground.
USB cable is a few core here to explain to you, I hope to help you. USB cable core wire is distinguished by different colors, generally more than three core cables have green/yellow two-color wire, designated as the color of the ground wire.
