ToughTech Duo QR, dual-2.5in portable enclosure, RAID 0/1, FW800/eSATA/USB2, 0GB (accepts 2.5in SATA drives) - RAID 1 for easy duplication of data in the field - Data Protection - RAID 0 for large FAST working volumes in the field - Data Performance - Stores up to 1.5 TB striped or 750 GB mirrored with two 2.5" 750 GB notebook drives - Passive thermal design for optimal heat dissipation - No fans means quiet operation - Removable drive sleds with built-in locks - No tools needed - Multi-country AC power supply: US, European, UK, and Australian plugs included - Removing/replacing drives does not void enclosure warranty - Bus power with included FireWire cables RAID - Not just a Four Letter Word ToughTech Duo removes the frustration of RAID with an easy-to-use interface that provides RAID 0 and 1 functionality at the touch of a button. Configure Duo as a RAID 0 (stripe) for extra speed and storage capacity, or as a RAID 1 (mirror) for data protection from drive failure.