Command line for Linux to distinguish whether the computer has a USB 3.0 interface


Since USB3.0 transfers files faster than USB2.0, many computers are now equipped with USB3.0 interfaces. How can you tell whether your computer has a USB3.0 interface? The Linux system can be detected with only one command.

Check whether there is a USB 3.0 port in the Linux terminal

Open a terminal and use the following command:


This command will display the USB bus information of your system. Check the results. If you see words like “3.0 root hub”, it means that your system has USB 3.0. For example, on my computer, it shows:

Linux如何分辨电脑是否有USB 3.0接口

This technique works on all Linux systems, such as Ubuntu, Linux mint, Fedora, and so on. Now when you know that you have a USB 3.0 port, how can you tell which port is USB 3.0 and which is USB 2.0.

Identify which port is USB 3.0

Generally, the USB 3.0 port is marked as SS (“abbreviation for super speed”). If your system manufacturer does not mark SS or USB 3, you can check that the inside of the port is usually blue.

Linux如何分辨电脑是否有USB 3.0接口

The above is the method for Linux to detect the USB3.0 interface. In order to prevent your computer from being cheated by merchants, you’d better use the command to detect whether the computer has a USB3.0 interface.