When we buy a mobile phone, there will be a standard cable, we all know that the USB cable can be used as a charging cable, most of the time we think that the USB cable is a USB cable, but this is not the case, this article will focus on the relationship between the two and explain the specific functional differences.
The difference between USB cable and USB cable:
1. Both the USB cable and the USB cable use the USB interface. Generally, there are four wires, but the USB cable uses two wires of the power supply VCC and GND, while the use of the USB cable is VCC, GND and two communication lines.
2. The USB cable has four lines in the USB interface cable, and the USB cable has two lines in the USB cable, so the USB cable can be used as a power cable, and the USB cable can not be used as a data cable.
3. Turn the side of the USB port with the contacts facing up, look at the number of contacts in the USB port, only 2 contacts are USB cables, and those with 4 contacts are USB cables, but some black producers deliberately make 4 contacts in order to disturb the eyes and ears, but there are only 2 wires (power VCC and GND cables) inside.
The way to identify whether it is a USB cable or a USB cable is to check whether the data can be read normally by connecting to the computer, which can be a USB cable, and vice versa. Or you can do this by looking at the number of contacts in the USB port
