Arrived well packaged, but interestingly, had 3 loose screws floating around inside the case (hence the 4 stars instead of 5).  Upon inspection, I found they were motherboard screws either not installed or worked their way loose?  I simply screwed them back into the holes where they belonged, and tightened the other motherboard screws that were securing the board (2 were loose).  Other than that minor issue, the unit fired right up and is performing rock solid.  Will buy more when the need arises -- great deal on for a home workstation.