Meet Drobo, the world’s first storage robot! It can combine 4 SATA I/II HDDs of any sizes together to form a single virtual disk, making it an extremely useful storage device! One will be able to store huge amounts of data including images, videos, etc. Drobo has also been designed to protect and secure the data and is both Mac and Windows compatible. It has an USB interface and sells for almost 1000 bucks!