I bought this mini computer about a year ago to run security software from Blue Iris software.  I wanted a system that was quiet -- no fans, and this computer accomplishes that -- its dead quiet.  The case is basically a big heat sink the keeps the system cool.  There are no fans.  The one issue I had is the security software would not start (system would not automatically boot)  if there was a rare power failure at the house. By default, the system requires the power on button to be pushed.  I contacted support, and was provided instructions to place a jumper on the outer two of three pins on the mother board.  Now everything works properly.  Should the power fail, the system boots right up and security cams are back on the air.If you are looking for a quiet system - this is your ticket!