1. Hot swappable: Users do not need to shut down or restart external devices, but can directly plug in the USB while the computer is working.
2. Convenient to carry: USB devices are mostly known for their small, light, and thin size, making it very convenient for users to carry large amounts of data with them. Of course, a USB hard drive is the top choice.
3. Standardization: Common applications include IDE interface hard drives, serial port mice and keyboards, and parallel port printers and scanners. However, with USB, these application peripherals can all be connected to personal computers using the same standards, resulting in USB hard drives, USB mice, USB printers, and so on.
4. Can connect multiple devices: USB often has multiple interfaces on personal computers, which can connect several devices at the same time. If a USB HUB with four ports is connected, it can be reconnected; Four USB devices, and so on, can be connected as much as possible, connecting all your home devices to a personal computer at the same time without any problems.