Billed as the world’s smallest RAID solution, the Norazza PocketRAID supports both RAID-0 (striping) and RAID-1 (mirroring). It holds 2 SATA drives (each in 80GB, 120GB and 160GB sizes). The interface to your computer is either USB or eSATA. About the only drawback to this product is the cost; the 2x160GB solution is listed at $720. Obviously, this is a portable solution, but for comparison, an external hard drive solution with 2x500GB hard drives typically costs less than $400. I don’t think I need a portable RAID solution that badly, but perhaps companies may be interested in it for their road warriors.