The industry's highest-reliability 7200-RPM drive, designed for 24×7 operation with MTBF of 1.4M hours and AFR of 0.62% SATA 6Gb/s for fast, economical Tier 2/nearline performance Enterprise-class firmware features and best-in-class rotational vibration tolerance maximize system availability and performance. Lowest operating power (under 6.4W) and enhanced PowerChoice options for additional power savings during slow or idle periods; Workload Management technology helps systems keep drives cool. Best Fit Apps include: storage-hungry business apps, storage area networks (SAN) & network attached storage (NAS), maximum-capacity servers & blade servers, rich media content storage, enterprise backup & restore - D2D, virtual tape, cloud computing The available storage capacity may vary.