Drobo is Big Storage in a Small Box. Physically, a single Drobo looks like a black rectangular box with LED capacity and disk status indicators on the front, with 4 to 12 disk-drive bays, and various connectivity options (iSCSI, Ethernet / File Sharing, USB 3.0, eSATA, Firewire).

The Drobo allows any combination of types, sizes, or speeds of hard drives to be placed in some or all of the drive bays, at any time (hot-swapping is possible), where they form a larger logical redundant whole, available to various applications.

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