There is a USB port that whatever I plugged in, I don't get anything.
The first USB port, whatever I plugged in, nothing showed. Nothing on dmesg. I could not mount a USB stick if I plugged it in there. And if I plug a mouse in, then again, nothing work. This is a USB port version 2.0
The second USB port, if I plug a USB stick in, I got a message asking me what do I want to do with it. I could mount it by hand if I want to. When I look at the output of dmesg, it showed that I just plug in something and assigned it to /dev/sdc1. If I plug a mouse in, it automatically works. This is a USB port version 3.0
In Windows, both USB ports work.