Solid PC.  I purchased from the seller StallionTek, so I can't speak for what you will get from another seller.  Specs were advertised as i5-4570, 16gb ram, 240gb SSD with windows 10 pro, priced at $185.Great packaging, securely boxed.  It came with a cheap keyboard, mouse, wifi dongle and a displayport to HDMI adapter.  Everything worked and I'm happy with the additions.The PC came with an i5-4590, which is a step up from the advertised 4570, and a 256gb SSD (advertised a 240gb), so 2 more big pluses!  The SSD is branded as an Integral Crypto SSD, so it's a no name base SSD that benchmarked at 325 MB/s, so pretty cheap, but works fine and is still several times faster then most mechanical hard disks.Ram is Samsung 4x4gb sticks at 1333mhz, for 16gb.  The timings matched the rated specs on cpu-z for the top speed for the sticks, I don't recall the timings exactly.  But they are all seen by the OS just fine.I stress tested to check clock speeds and temps, and everything was good.  Max temp after an hour was 80c and boost clock was 3.7ghz.  Probably won't see temps like that for normal use, idle/browsing temps were 35c.  I will probably apply some new thermal paste to the cpu in the future, because I'm a geek, but not required.  Make sure to set the power plan to "high performance" to get the cpu to run the max boost clock all the time, if you want max speed.So for about $30 more then a official copy of Windows 10 pro, it's a smoking deal for these elitedesk 800 g1's.  Look for the 4th generation i5/i7, they have the AVX2 instruction set and are not far behind the new processors.  They really haven't made much progress since 4th gen Haswell besides some clock speeds and minor improvements, and they are a great bang for the buck.  16gb and an SSD will keep the PC quick for a while.Hope this helps, from one geek to another. :)