First thing, the vendor matters.  Some of these rebuilt computers aren't as well refurbished as others. I've bought a handful over time. You see some disturbing stuff with the poorly prepared units.  I got this one at SKYTECH, you can't beat them. I'm sure there are many others, but those guys are tops.  Also, if you're a Prime member, it would pay to use an Amazon supplied  machine, not just an Amazon approved vendor. There is a BIG difference.Second thing, for most HDMI is the standard. HP uses a video display port, not to worry the adapters run around six bucks. Get one when you order your machine.Thirdly, and most importantly, BUY ONE.  You will be thrilled!  the i5 configurations with 16MB RAM and an SSD are real performers.  My daily driver is a i7 gen9 with 32MB RAM and I hardly notice the difference with daily computer and audio work.  Even light image processing is within this machines ability. As a school and work machine, this is a screamer.If you watch a lot of video online you'll notice the lack of a video card, I watch tutorial stuff which suits me just fine at lower resolution. But you can't expect a "cinematic" experience without a card.  Still, a doable upgrade after kicking the tires some.My daily driver gets a lot less attention these days.  I am comparing this $250 computer to a $2000 computer. You can hardly notice the difference for daily tasks. I use mine as the basis for a  home recording studio.