I purchased an EliteDesk 705G4 from TekRefurbs a few months ago and have had no problems with it. So I didn't hesitate to buy this HP ED 705G5. Well, it failed on me...it wouldn't stay powered up for more than 10 minutes...power back on, 2 minutes. Power again, 1 minute. Power on...1 second. I started swapping out parts between the G4 nd G5. Nothing worked...but all the parts worked in the G4. I contacted TekRefurbs and I got responses quickly. When I finally figured out the power brick was faulty, they sent me a new one that arrived in two days. The machine works perfectly now. They said to toss the bad brick...they don't want it back. This machine works as expected for a 3400G Pro, 16GB RAM (mismatched 2133, 3200), 256GB Toshiba NVMe, with an empty 2.5" drive caddy, and a VGA expansion port (would prefer HDMI, but luck of the draw) along with two built in DP ports. It runs Windows 11. BTW, the G4 will run Win11 perfectly well even though Microsoft doesn't support it. Great little PC for office work, and old games.  Fear not buying from TekRefurbs.