How does Linux distinguish whether a computer has a USB 3.0 interface

Since USB3.0 transfers files faster than USB2.0, many computers are now equipped with USB3.0 interface. How do you tell if your computer has a USB3.0 interface? Linux systems can be detected with just one command.

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

Open a terminal and use the following command:

lsusb

This command will show you USB bus information under the system. Check the results, if you see something like "3.0 root hub", this means that your system has USB 3.0. For example, on my computer, so it displays:

This technique on all Linux systems, like Ubuntu, Linux Mint, Fedora, etc. are valid. Now when you know that you have a USB 3.0 port, how to identify which port is USB 3.0 and which is USB 2.0.

Identify which port is USB 3.0

Normally the USB 3.0 port is marked as SS (short for Super Speed). If your system manufacturer does not mark SS or USB 3, then you can check that the inside of the port is usually blue.

The above is the Linux USB3.0 interface detection method introduced in order to prevent their computers being businessmen pit, it is best to use the computer under the command detect whether a USB3.0 interface.