I have been watching Delta Servers on eBay - very interesting. But I'm very confused which H/W option is right for me. Sorry, been away from the H/W game for a very long time. I'm seeking a SFF inexpensive and quiet unit for home (deploy in office/bedroom) that I will install Unraid on. The Dell Poweredge T4XX and Lenovo ThinkServer TS4XX series are interesting, but concerned that their controller cards may interfere with Unraid HDD (I have SATA not SAS HDDs) access (need to research).