Seagate Constellation 500GB 2.5 2.5" Serial ATA II

- First 2.5-inch, 15mm nearline drive for space-constrained data centers - Lowest operating power and enhanced PowerChoice™ power options for unprecedented power savings (up to 54%—as low as 1.1W) during idle - The highest-reliability 7200-RPM drive, designed for 24x7 operation - Best-in-class rotational vibration tolerance ensures unrivalled performance in high spindle-density applications, and multi-drive firmware maximizes system availability. - SAS offers seamless Tier 2 enterprise experience, with improved data integrity. SAS 2.0 enables faster data access and larger topologies, increasing system scalability, data throughput and connectivity. - Self-Encrypting Drive (SED) option cuts IT drive retirement expenses while securely protecting data - FIPS Self-Encrypting Drive option provides all the benefits of SED and is NIST certified to meet U.S., Canada and U.K. federal data encryption compliance requirements