First I think I can use this unit like a portable 2GB drive, go to my job attach it to the network, and OPS, 2TB storage with you files is available for use. But when I look more carefully to the unit I realize THIS UNIT IS NOT FOR TRANSPORTING HARD DRIVES INSIDE. HARD DRIVES CAN MOVE! HARD DRIVE CAN DAMAGE UNIT OR CAN BE DAMAGED BY UNIT. FRONT PLASTIC COVER CAN'T HOLD DRIVES INSIDE IN ROUGH CONDITION, AND DESKTOP HARD DRIVES IS NOT DISIGNED FOR THIS CONDITION!
Check out WD Elements: http://www.wdc.com/en/products/products.asp?driveid=498 if you want something to move big amount of data from one computer to another.Or WD Passport http://www.wdc.com/en/products/products.asp?driveid=517.
Note: 2.5 Hard Drives is for LAPTOPS, so I think Passport can absorb shock and can be used if you travel.