Storage similar to the OWC Envoy Pro EX

• Excellent performance
• 2TB of storage accessible via the cloud
• Expandable via USB 3.0 port
• DLNA and iTunes media server support

• Easy, tool-less swapping of 2.5-inch drives
• Fast read/write performance depending on the installed drive

• Much faster write speed than normal USB 3.0 hard drives

• Limited data redundancy (because there's only one drive)
• Can't stream media via the cloud
• No BitTorrent support

• 2.5-inch drives only

• More expensive than the typical USB 3.0 drive

The Envoy Pro EX is a SSD that is a great combination of speed and portability.

It's easy to insert drives into or remove drives from the miniSwap/U3, and it also provides good USB 3 performance.

If you're looking for a fast, capacious, not-too-expensive direct-attached backup drive, look no further: Buffalo's DriveStation DDR uses 1GB of DDR3 memory to dramatically enhance write performance.