Rock solid little unit for running a small linux server. I added 4G RAM and and old 250G SSD I had lying around and plugged in a 4T USB3 drive in for a media server for my vacation home. In addition, it operates as a VOIP server and DVR for video surveillance. I have it plugged into a large UPS which is great for letting me know when the power fails, the heat in the house gets too low, etc.