It's got a 500GB solid state drive and an exterior designed by Neil Poulton—what more do you want? Thunderbolt? Yes, it does that too.
The LaCie Little Big Disk is available as either a 240GB and 500GB SSD, or as a 1TB traditional 7200RPM hard drive. All three varieties use dual disks as a striped RAID set—wherein data is split evenly between the two disks.
And because the Little Big Disk is built with Apple's new Thunderbolt technology, it's lightning fast—with data transfer rates of up to 10Gb/s (double that of USB 3.0). Plus, Thunderbolt allows the LBD to daisy-chain between your MBA, Mac Mini, and Thunderbolt Display.
The LBD measures 1.6 x 5.5 x 3.3 inches and weighs just 1.4 pounds (630 grams). Its aluminum case's unique heat-sink shape keeps the unit cool without requiring a fan and was designed by award-winning designer Neil Poulton, who has worked with LaCie in the past.