I ran into a couple of snaffu's with this desktop (side note - I am techno-retard, so please excuse my lack of expert terminology).I have a 27" HP monitor that I wanted to use my HDMI cable for optimal picture/viewing, but this desktop does not come with an HDMI port!  (no kidding, look at the pictures).  You can use your old-school VGA monitor cable, but if your monitor supports HDMI, don't expect to have HDMI functionality right of the bat.I did some research and to solve this issue, I bought a DisplayPort to HDMI adapter and connected it to the tiny, unlabeled, illuminated D/P port on the back of the computer.  My monitor now supports HDMI quality picture.  https://www.amazon.com/gp/product/B017Q8ZVWK/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1Another issue I encountered was slow internet speeds.  My desktop came with a 802.11n wireless chip adapter already plugged into one of the back USB ports.  I ran an online speed test and wasn't picking up more than 2 mbps.  Very slow.  To solve this issue, I connected an ethernet cable directly to my modem from my desktop and am now picking up 35+ mbps.  I know this stuff may seem obvious as you're reading it, but it took me a while to figure this stuff out on my own without any help from Dell.Finally, one other thing.  The video/graphics card is pretty sub-par (I tried playing Guild Wars 2 and it's incredibly slow/choppy).  To be fair, there are reviews on here stating this is not a gaming computer.  Just had to find out the hard way, I guess.  (Actually, if you're reading this, is it possible to upgrade the graphics card in this desktop to make it gaming-compatible?)One other thing.  Don't get confused with "it comes pre-installed with Windows 10".  If you're like me, perhaps you thought it would come pre-installed with Microsoft Office, but it does not.  I guess I really need to brush up on my computer lingo.....