Fitting a 1TB into a box measuring 5.31 x 3.22 x 1.57 inches isn't all that easy (most NAS boxes we've seen would crush a squirrel easily) but Buffalo seems to have not only accomplished this but shoved in a whole bunch of other features as well. The Mini's got a Gigabit Ethernet port, support for RAID 0 and 1, Active Directory Support, UPS support (to shut down in case of power failure), and best of all, runs an on-board DLNA server.