Multi port USB cannot be used purely as a multi port charger, as HUB is mainly used for long-term data transmission of keyboards, mice, USB drives, etc. If used for phone charging, there may be a situation where the power supply is insufficient and the battery cannot be charged Drive free, plug and play, independent switch for quick and convenient shutdown of USB drives and other devices, avoiding the trouble of unplugging. The indicator light can visually display the working status of each interface device Solve the problem of connecting USB devices such as desktop computers, laptops, tablets, and laptops to USB drives, USB wireless network cards, mice, keyboards, and printers. Support multiple devices for simultaneous use, hot swapping, and plug and play, avoiding damage to devices caused by repeated plugging and unplugging, and bringing convenience to our work, life, and study The safety mechanism is equipped with built-in overvoltage, overcurrent, short circuit, and leakage protection modules to provide multiple protection mechanisms for each interface.