I have two ports on my laptop: USB 2 and 3 - how can I find out which one is 3.0 without relying on the supposedly “blue” color (I stupidly don’t see it blue or green)?

Question

USB

subject -)

System: Ubuntu 20.04

Google on the topic is full of some kind of demagogy instead of a simple and understandable solution

, and yes, it can help: one port is now empty, and on the other I hung three devices through the hub.

I just don't know which one is which.

initially there was a beautiful sticker next to 3.0, but then it got lost somewhere in the course of life)))

Answer 1

usbutils , in addition to the lsusb utility , also has lsusb.py to display more human-readable information on usb,
but unfortunately I don’t see this script on the ubunt boot disk, although if you wish, you can easily get it by downloading the desired archive from usbutils v12 (this version is in ubuntu 20)
then unpack and get the lsusb.py.in file from there , renaming it to lsusb.py and making it executable
chmod +x lsusb.py
, and then run it there
./lsusb.py

Answer 2

Download the manual for your model, see the port layout in the manual?