The USB cable is a four-wire red power supply, and the black one is for grounding. Just cut these two wires and pull them out again. You can connect them as long as you want. USB devices are generally powered by 5V. It will be fine if the current is larger. High power.
USB is the abbreviation of Universal Serial Bus in English, and its Chinese abbreviation is "Through Serial Bus". It is an external bus standard used to standardize the connection and communication between computers and external devices. . It is an interface technology applied in the PC field. The USB interface supports the plug-and-play and hot-swappable functions of the device.