Buffalo Technology's Mini Station Thunderbolt Portable HDD is world's first 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 pr serving backward compatibility with existing devices that support USB (Universal Serial Bus) 2.0 or USB (Universal Serial Bus) 3.0.