Sonnet Fusion D4/R4/D5/D8/R8 Drive 1000GB Serial ATA internal hard drive

Fusion D4/R4/D5/D8/R8 Drive, 1000 GB, 7200 RPM, 32 cache More Space + Added Security
Whether you perform incremental backups, swap out large amounts of data, or have your Fusion RAID system configured with a hot spare, it's always handy to have extra drive modules around. This Fusion drive module features an Enterprise/RAID Edition hard drive that was subjected to hours of additional, stringent testing to check for soft errors, vibration, and other reliability predictors—just the sturdiest drives pass these tests and are prepared with special RAID-optimized firmware. Enterprise/RAID drives offer higher MTBF (mean time between failure) specs, carry longer warranties than "desktop" drives, and are the building blocks of a super-reliable Fusion storage system.