The 512GB Thunderbolt Drive+ Portable SSD from Elgato Systems offers advanced storage technology. The drive provides up to 420 MB/s data transfer rate and is designed for MacBook Air, MacBook Pro, or Ultrabook with built-in flash storage. Set in a dust and water protected metal enclosure, this solid state drive is the perfect storage solution when you are on the go. Using server-grade Plextor SSD technology, it outperforms other portable drives without compromising on portability. The bus-powered operation of the drive ensures the data is always there with you, even when no power source is available.This drive features both advanced and common connectivity standards to ensure you can always access your files. With Thunderbolt technology, the drive offers high performance interfaces. Furthermore, the backwards compatible USB 3.0 port ensures that you can connect this drive to virtually any computer that you need.