How to clean a dusty USB Port?
If the port is that dusty, imagine the inside of your computer. If you have a laptop, blow thru the air vents also. If you have a desktop, take the side panel off (make sure it’s unplugged from the wall first). Give it a good cleaning with the air and some qtips. Dust can cause BSODs, so it’s a good thing to do every 3-4 months.