Is the usb data cable the same as the charging cable? Stop asking why your charging cable can’t transfer files

USB is the abbreviation of Universal Serial Bus, English UniversalSerialBUS, is one of our most common data interfaces. Although we always have a data cable when we buy a mobile phone, when we need to buy it ourselves, we will find that in addition to the usb data cable, there is another type called charging cable. The appearance of the two is exactly the same, but there are often price differences. If you do not pay attention to identification, it is easy to mistakenly buy wires that cannot meet your needs.

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The charging cable, as the name suggests, can only be used to charge the phone. In addition to charging, the data cable can also connect the mobile phone and the computer to transmit data. In terms of appearance, the two lines are almost the same, both use the usb interface, but the cores are different. Generally speaking, the core of the usb data cable includes:

Red wire: the positive pole of the power supply (the identification 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 (identified as: Data+ or USB Port +)

Black wire: ground (marked as: GROUND or GND).

The power cord has only red and black cores, and the white and green wires responsible for data transmission have been removed. Therefore, the data line can be used as a power line, but the power line cannot be used as a data line. Many manufacturers will deliberately confuse data cables and charging cables to mislead consumers who need data transmission functions. Therefore, when purchasing a third-party USB data cable, you need to choose a branded and well-known product. Avoid being deceived.

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