Buffalo Technology's Mini Station Thunderbolt Portable HDD is portable Thunderbolt with an USB (Universal Serial Bus) 3.0 dual interface external drive solution. The Thunderbolt (10 GBps) interface is twice as fast than USB (Universal Serial Bus) 3.0 while preserving backward compatibility with existing devices that support USB (Universal Serial Bus) 2.0 or USB (Universal Serial Bus) 3.0. Bus-powered, the Mini Station Thunderbolt Portable HDD requires no additional power supply & is easy to carry. Just plug the portable HDD body with the included Thunderbolt Cable onto your Mac. Enclosed in a sleek aluminum body with a transparent frosted top, the design feels luxurious. Mini Station Thunderbolt Portable HDD features an indirect disk access LED indicator on the underside that tastefully illuminates its supporting surface. With the Mini Station Thunderbolt Portable HDD on the move, you can transfer digital content faster, simplify connections between devices, maintain compatibility with most devices & enjoy the ultra-fast speeds of the market's latest portable storage solution.