Transcend Storejet 1.5T Portable USB 3.0 Hard Disk (TS15TSJ25H3P) SuperSpeed USB 3.0 compliant and backwards compatible with USB 2.0 Military-grade shock resistance Advanced 3-stage shock protection system Easy Plug and Play operation no drivers required Connection bandwidth up to 5Gbits per second USB powered  no external adapter necessary One Touch Auto-Backup button*** ExclusiveTranscend Elitedata management software Included