The StoreJet 25H3 portable hard drive combines the superior performance of USB 3.1 Gen 1, vast storage space, eye-catching enclosure, and a three-stage shock protection system that meets U.S. military drop-test standards. What else can you ask for?- Military-grade shock resistance- Fully Compliant with the Hi-Speed USB 2.0 specification- Advanced 3-stage shock protection system- Durable anti-shock rubber outer case- Advanced internal hard drive suspension system- Quick Reconnect Button – after safely removing the hard drive from the system, press to reconnect the drive without having to unplug and replug the USB connector again- One Touch Auto-Backup button- 256-bit AES file & folder encryption- Exclusive Transcend Elite data management software