This was sent by Quality Recertified.  I got the unit on time and set this up as a little closet server to replace a Raspberry Pi.  Of course, it has lots more power over even a Pi 4.  I got it up and running to my satisfaction over a couple of days.  It works great for a week until yesterday.  Did a few tests and SSD was fried.  It was a Suneast SE800, something I never heard of and I doubt HP was shipping this in their units.  The refurb guys probably yanked out the HD (if they even had any from the folks they got these units from) and put in the cheapest SSD they could find.  I had a couple of 250G SSDs laying around, so proceeded to swap it out.  (I wasn't going to go through the hassle of returning the unit only to get another one with a useless SSD.)  I noticed whoever put in the mounting nibs on the SSD monkey fisted it in and twisted the insert causing it to spin.  No care in the assembly here.Checking the drive independently proved the drive bad.So, the point is this: nice unit, but you'd want to open it up and check to make sure you have a quality SSD in there.  Swap out the drive with something quality if need be.Will update if something in the unit caused the drive to go bad, but I doubt it.