Port 443 is used by computers to divert network traffic on the internet via web servers. It establishes an encrypted connection with a web server. Sites beginning with https:// using the lock icon are ...

If you've ever looked closely at the USB ports on your laptop or desktop PC, you may have noticed that some are labeled with a small symbol. It looks like the letters SS, with a three-pronged icon ...

I don't know if there is any internal switching difference, but the only difference I have ever noticed on most devices is that the port is either crossed or has a button to switch from crossed to ...