Western Digital - Cavier Caviar RE4 3.0TB 7200RPM SATA600 64MB Western Digital RE4 (RAID Edition 4) - 3.0TB - 3.5" Hard Drive (WD3000FYYZ), Optimized for use in 24/7 Servers & RAID Arrays, Serial ATA (SATA600), 7200RPM, 64MB Cache - (5Y)  - B/O