Transcend’s StoreJet 25M3 ruggedized external hard drive combines supreme shock-resistant qualities with the USB 3.1 Gen 1 interface, allowing for ultra-fast file transfers and the highest level of anti-shock protection.The StoreJet 25M3 external hard drive is equipped with the USB 3.1 Gen 1 interface, providing lightning-fast transfer rates of up to 5Gbps.Features a three-stage shock protection system that meets US military drop-test standards to fully protect data stored on the drive.Equipped with a one touch auto-backup button that instantly backs up your data with just one press*. The button also enables you to reconnect the hard drive to your PC without the need to unplug and reinsert it.