One plus one is greater than two. Transcend's StoreJet 25M3 portable hard drive combines the advantages of Transcend's shockproof StoreJet M series and the next-generation SuperSpeed transfer rates of USB 3.0, allowing users to enjoy ultra-fast file transfers and the high level of anti-shock protection.Besides its outstanding combination of super fast transfer speeds and extra-rugged anti-shock design, the StoreJet 25M3 is equipped with an extremely convenient one touch auto-backup button. Now you can instantly backup, synchronize and copy large files without having to waste precious time waiting for the transfer to complete.