Not a NAS but an eSata and USB 3.0 RAID box. I bought an iView HFR2-SU3 recently, there seemed to be a fire sale on them as there appears to be an issue with the reliability of the RAID function, caught one for $34.95 just before they sold out.
Not really interested in the RAID I've tried them in the past and I came to the conclusion that unless you are willing to spend a large amount of money for a hardware RAID (I'm not!) then don't bother with a software one as it will mess up when you least want it to.
So this box is purely being used as an external housing for 4 disks, actually 2 x 4TB disks at the moment, I intend to fill the other two slots once I get some more cash together. So for the price of the housing and the two drives I am replacing two 4 x 1TB drive sets and improving my upgrade options. Hopefully it will also cut my server's power consumption. The drives came from a couple of Seagate 4TB expansion drives, these things are cheaper than buying the bare drives, by about $30-40, and are fairly easy to crack open and remove the drives. Added bonus is that I replaced the 4TB drives with a couple of my now redundant 1TB drives and I have two 1TB externals as well. The other 6 1TB drives are going to be sold on, one has gone already. I spent most of Friday populating the master drive of the 2 x 4TB and started off yesterday copying the master to its image, that process looks as if it is going to take about 70 hours, I'm wishing now I had mounted them internally in the PC at least until this part was done, well patience is a virtue they say.