What is the USB socket of TV set-top box for?

1 for upgrade. You can upgrade the set-top box firmware by adding an upgrade file to the USB flash drive.

2. Used for local playback. If there is an application such as a file manager or a local player in the set-top box. You can play or browse the files on the USB flash drive.

3. Expand hardware, such as USB Bluetooth devices, or external devices such as wifi, headphones and microphones.

4. storage. If the set-top box has video recording function, it can be stored in a USB flash drive.

The specific practical use is determined by the function of the set-top box itself, including at least one of these four kinds, and may also include many kinds. In addition, some set-top boxes look like USB interfaces, but they are actually connected to other devices, such as infrared receiving extension cables. This is a fake USB.

Extended data:

USB is a serial bus standard for connecting computer systems and external devices, and it is also a technical specification for input and output interfaces. Widely used in personal computers, mobile devices and other information and communication products, and extended to photographic equipment, digital television (set-top box), game consoles and other related fields.

1, data transmission

With the rapid development of computer hardware, the application of USB improves the data transmission speed between external devices. The biggest advantage of speed increase for users is that users can use more efficient external devices, such as USB 2.0 scanner, which only takes about 0. 1 second to scan a 4M picture, and the work efficiency is greatly improved.

2. Connect peripheral devices

According to different interfaces and data lines, USB supports devices such as mouse, keyboard, printer, scanner, camera, USB flash drive, MP3 player, mobile phone, digital camera, mobile hard disk, external optical floppy drive, USB network card, ADSL modem, Cable Modem and other electronic products.

Baidu encyclopedia -USB interface