How to check the USB interface type of your computer?

First, appearance judgment: there is a very simple way to confirm the interface type of USB. You can judge the interface type by observing the color of USB interface. The USB2.0 interface is black and the USB3.0 interface is blue.

Second, the computer equipment manager's view:

1. Click My Computer, right-click Properties and open Device Manager.

2. Expand the "Universal Serial Bus" section and you will see the "enhanced" USB host controller option. After opening, check the USB drive type.

(The names under Windows 98 may be different, because the "high-speed USB" drivers in these systems are not directly provided by Microsoft (drivers will be provided in product upgrades of Windows ME, 2000 and XP). )

These drivers are provided by manufacturers, and may have the names of manufacturers (such as ADS, Belkin, IOGear, Siig, etc. ).

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Universal serial bus (USB) is a serial bus standard for connecting computer systems with 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.

The latest generation is USB 3. 1, the transmission speed is 10Gbit/s, the three-stage voltage is 5V/ 12V/20V, and the maximum power supply is 100W. The new Type C plug-in is no longer positive or negative.

USB is an external bus standard, which is used to standardize the connection and communication between computers and external devices. USB interface plug and play and hot plug function. USB interface can connect 127 kinds of peripherals, such as mouse and keyboard.