Seagate Constellation ES ST1000NM0011 1TB 7200 RPM 64MB Cache SATA III 6.0Gb/s 3.5" Enterprise Hard Drive is the fifth-generation 3.5-inch hard drive for capacity-optimized 7200-RPM enterprise environments. It enables cost-effective, highly efficient enterprise storage solutions with high capacities, best-in-class reliability, leading 6Gb/s performance, optimized power and cooling, and government-grade data security - all backed by world-class Seagate enterprise service and support. Be completely assured knowing this nearline drive optimizes your 3.5-inch chassis performance with the lowest power draw (less than 8W, running cooler in higher-temperature environments. This is perfect for enterprise-tiered storage solutions or small-to-medium businesses, which lack the luxury of a temperature-controlled data center. Employed by industry-leading enterprise OEMs, system builders and integrators who build cost-effective and high-capacity enterprise-class server and storage solutions, performance and enterprise features - and the traditional SATA (6Gb/s interface for seamless enterprise integration.