WD's My Book Pro Edition II dual-drive storage system offers RAID mirroring for extra data protection or RAID striping for extraordinary capacity and performance. A three-year warranty triple-interface and a powerful combination of features and performance make this system the storage solution of choice for creative professionals workgroups small offices and anyone looking for extra assurance that their data is safe. Product capacity - With one terabyte (1 000 GB) of storage in this elegant small footprint design you have plenty of room to store an entire digital photo library 125 hours of HD movies or over 75 hours of DV video. Extra data protection - For extra data protection dedicate half the capacity for mirroring and automatically and instantaneously back up dataevery time you save it. Extra-fast performance - The lighting-fast combination of FireWire 400/800 and RAID striping yields the speed you need for fast smooth video editing an extra-responsive Photoshop scratch disk rendering complex 3D objects or special effects and saving huge blocks of data in record time. Easy to set up easy to use - You're up and running in a few simple steps. RAID configuration is easy with WD's intuitive RAID Wizard software User serviceable - Easy access allows you to open the case and replace a drive. No need to send the entire system in for service.Triple interface - Provides flexibility and performance with connections for ultra-fast FireWire 800 as well as FireWire 400 and USB 2.0.EMC Retrospect Express Backup and System Recovery Software - Powerful backup software that includes full system backup and recovery easy scheduling and encryption.Capacity gauge - See at a glance how much space is available on your storage system.Intelligent drive management features - Automatic power-up Safe Shutdown and LED activity lights make this storage system especially easy to use.Quiet and cool - An efficient convection cooling system and a thermostatically controlled fan keep this unit reliably cool and warrantyIdeal ForGain peace of mind with a mirrored back up of important documents and images Organize and archive vast photo and artwork libraries Edit and exchange massive audio and video projectsSystem USB PortMac OS X 10.3 or laterWindows 2000/XPPackage IncludesMy Book Pro Edition II Dual-drive Storage SystemFireWire 800 cableFireWire 400 cableUSB cablePower adapter with cordQuick Install GuideImportant interface informationThis drive requires a USB FireWire 400 or FireWire 800 connection