Buffalo LinkStation Mini
Buffalo is the only drive maker to offer a portable network-attached storage drive. The LinkStation Mini packs two 2.5-inch hard drives inside, and it measures a little more than double the size of any other portable USB product that holds a 2.5-inch drive. Available in 500GB and 1TB capacities, the LinkStation Mini has no fans and contains a DLNA-compatible media server, which makes it a great addition to an entertainment setup. The unit can also handle RAID 0 and RAID 1, and it supports Active Directory, features that boost this model's appeal to offices, as well.