The USB device list looks okay. You do not have many USB devices connected at this time. Have you noticed any patterns to the USB lockups, such as:
- Do USB ports lock up when running a certain application?
- Do USB ports lock up when doing nothing at all (computer is idle)?
- Do USB ports lock up when playing video or performing some other A/V task?
- Any repeatable pattern?
Have you also tried the process of elimination, as follows:
- Disconnect all USB devices except keyboard and mouse.
- Do the USB ports lock up?
- If not, then connect one additional USB device and test the system.
- Do the USB ports lock up?
- If not, then connect one more USB device and test the system.
- Repeat the process until USB ports lock up.