Iomega 34278 500GB eSATA 3 GB/USB 2.0 Professional Hard Drive Performance Driven - eSATA performs 6x faster than USB 2.0 or FireWire 400! 3 Gbits/eSATA connection saves you time Secure - Award-winning , EMC Retrospect and MozyHome software included for professional-level backup and disaster recovery for all your critical data. Just set it and forget it - effortlessly back up your files on a scheduled basis Reliable - Compliant with the NEW eSATA standards Includes Iomega Never Down Software - Create a safety net for your system files with complete external backup of your operating system, applications, personal settings, and data