1. It can be used to connect various electronic devices to realize the purpose of data transfer, backup, and data synchronization without the network. This is an important use of the usb data line interface, especially for data backup and synchronization, which is of great significance for modern data security. Under certain conditions, in order to prevent information from being intercepted, we cannot use the network to transmit data. Therefore, at this time, data backup and synchronization must be transmitted by wire, so as to ensure safety.
2. It can be used to flash the machine. This is a professional-use line, which is generally used in after-sales maintenance of mobile phones. The general interface requirement of the line used for flashing is COM type, this kind of special purpose line cannot be replaced by the general interface line. Only use this cable to ensure the safety of the device and data when flashing the machine. This can be said to be a special use occasion for the USB data cable interface.