Having opted for passive cooling for a NAS XPenology, I decided to start with a J1900 basis for achieving a PC web + desktop + film; a 100% passive basis. The Q1900DC is powered by a transformer (not included) which I added 4GB of RAM and a 64GB SSD. Everything runs on Kubuntu 14.04. I tested the movies (.iso VLC) and surfing on the Internet: everything works perfectly and the radia is barely warm. Next step: hooking it to a 24 '' so that the screen and hard may be one ... in an unbeatable silence ...