The Transcend StoreJet 25M3 combines the shock-resistant qualities of Transcend's award-winning rugged StoreJet M series SuperSpeed 5Gb/s interface bandwidth of - allowing users to enjoy ultra-fast file transfers and the highest level of anti-shock protection.It is military-grade shock resistant. The device is SuperSpeed USB 3.0 compliant and backwards compatible USB 2.0. It offers an advanced 3-stage shock protection system and comes a durable anti-shock rubber outer case. The device function on an advanced internal hard drive suspension system and features one touch Auto-Backup button. The Quick reconnect button allows you to reconnect the drive out having to unplug and replug the USB connector again.