Data transfer ‌ : USB interface is widely used to transfer files, such as photos, videos, music, and so on, between computers and other devices. Whether it is external hard disk, U disk, or smart phone, camera, just a USB cable, you can realize the rapid migration of data, greatly improving the work efficiency and data backup convenience ‌

Charging ‌ : With the popularity of mobile devices such as smartphones and tablets, USB charging has become mainstream. Many power adapters and car chargers are equipped with USB ports to make it easy for users to charge their devices at any time. In addition, some high-end monitors and laptops also support charging other devices via a USB port ‌

Connect a variety of peripherals ‌ : USB interface is also commonly used to connect a variety of peripherals, such as keyboard, mouse, printer, scanner and other office equipment, as well as game controllers, speakers, cameras and other entertainment equipment. This wide range of compatibility allows users to flexibly select and connect a variety of peripherals according to needs, thus enriching the functions and uses of the computer ‌

Special features ‌ : The USB port also supports some special features, such as video output and network connection. Through a specific USB-to-HDMI or USB-to-cable adapter, video transmission between a computer and a monitor can be realized, or a computer can be connected to a LAN, further expanding the application scenario of USB ‌

Storage device ‌ : USB port can be connected to a USB flash drive, external hard disk drive (including HDD and SSD), memory card reader and other storage devices, convenient data storage and transfer ‌

Input device ‌ : including mouse, keyboard, game controller (such as gamepad, steering wheel, etc.) and touch pad, these devices are connected to the computer via USB port, providing rich input functions ‌.

Audio equipment ‌ : such as USB headset, USB microphone and USB sound card, these devices are connected to the computer through the USB interface, to achieve sound input and output ‌.

Video device ‌ : includes USB webcam, USB video capture device and USB graphics card (for expansion or multiple monitors), these devices are connected to the computer via USB interface, video capture and display ‌.