Update: I have ordered a 2 Nd one to use in my Hobby Shop. Perfect! Purchased 8 months ago, to use with my video capture to record Directv DVR to external hard drives. My set up is the following. I have a 15” tv (used in RV on trips) My Elgato Video capture is connected to the Directv box, then connected to the mini pc. The mini pc is connected to the tv which gives me a monitor and sound. It does not need to be connected to the tv, but I edit some recordings and I like having the sound available. I don’t keep it connected to the internet because I don’t like constant updates! Yes, it has built in wifi (turned off) mine does have USB 3 and USB 2 and no Bluetooth ( not a problem, I use a Bluetooth adapter for keyboard and mouse.) Good news is when we go on a extended RV trip everything is so portable it is extremely easy to just grab & disconnect what you want to take with you (external hard drive, the mini & the tv or all of it) and go! Hubby gets to watch his old westerns on the go  with no internet needed-while I am on my laptop planing our next stop and adventure.