Constellation ES drives offer the world’s highest capacity at 2TB while providing enterprise robustness for Tier 2/nearline environments. They are differentiated from 3.5-inch desktop drives by offering enterprise-class reliability and superior data integrity with a UER of 1E10-15. Enterprise-class rotational vibration tolerance provides robust protection from chassis and fan vibrations (RV 12.5 rad/sec 20 to 1500Hz). The drives are offered with either a 3-Gb/s SATA interface or a 6-Gb/s SAS 2.0 interface for superior data protection at industry-leading speeds, along with optional power saving modes with PowerChoice. - Fourth-generation, enterprise, nearline drive designed for 24×7 operation; - Up to 2TB capacity for data-hungry enterprise business applications; - Best-in-class enhanced rotational vibration tolerance ensures unrivalled performance in high-density applications for continuous data access; - Enhanced efficiencies with PowerChoice™ host-selectable power options for unprecedented savings (up to 35 percent) during slow or idle periods; - Proven reliability with multi-drive firmware maximized for enterprise system availability; - Robust performance with dual processor technology and ramp load technology; - Provides business sustainability with Seagate Unified Storage architecture; - 6Gb/s SAS performance with error detection and correction (IOEDC/IOECC) capabilities for the ultimate in data integrity; - Government-grade Self-Encrypting Drive (SED) option for TCG-compliant/AES-128 security cuts IT drive retirement costs while securely protecting data.