Seagate Momentus 7200 FDE 500GB 7200RPM SATA 3Gb/s NCQ 16MB Cache 2.5 Inch Internal Bare Drive ST9500421AS 500GB Capacity and 16-MB Cache. Two Year Warranty Hardware-based encryption without the headaches and without the performance degradation of software-based encryption Enterprise-ready with third-party ISV manageability, including remote management capabilities Factory designed-in, hardware-based encryption keeps the cost, the integration and the deployment simple. Best-Fit Applications include mainstream and high-performance laptops and backup storage for: Government, Healthcare, Finance and banking, Education and Corporations 500GB Capacity and 16-MB Cache Hardware-based encryption without the headaches and without the performance degradation of software-based encryption Enterprise-ready with third-party ISV manageability, including remote management capabilities Factory designed-in, hardware-based encryption keeps the cost, the integration and the deployment simple. Ships in Certified Frustration-Free Packaging