The Cirago CST5320 320 GB Portable Storage is a compact, lightweight storage solution that lets you store a lot without carring a lot. Store, back up and transport videos, photos, music, and other files without taking up space on your laptop or PC"s hard. The durable aluminum enclosure is functional and elegant, providing superior cooling while looking stylish. The USB 2.0 interface provides plug and play compatibility with most computers including Windows and Mac OS. The Cirago CST5000 Series are protected by a 3-year limited warranty.