Summary: I purchased the N0204 as a RAID1 NAS. I have been very satisfied with my Buffalo NAS (many years old, the only prolbem I every had was that fan failed several years ago, Buffalo was very helpful in describing how to fix it). It was time for a RAID1 box, and this box looked quite intriquing. Installation is very frustrating. There is only one way to install this machine and if it doesn't work, you are dead.