USB 101 - we break down the 1,2,3,4, and a,b,c of USB connections.
A reader wants to keep his laptop USB ports active for charging, but I have a better suggestion.
Can I use USB 3 drives with USB 2? We troubleshoot a sewing machine problem.
How a little troubleshooting could save you a lot of trouble and money in the long run.
After a downgrade to Windows 7 from 8, USB ports and the headphones have stopped working on this laptop.