WD Gold Datacenter Hard Drive. Single Bulk Pack. 10TB Formatted Capacity. SATA 6 Gb/s Interface. 512 / 4096 Logical/Physical bytes per sector. 7200 RPM Class. Specifically designed for use in enterprise servers, datacenter servers, and storage systems. Designed for 24x7x365 reliability at workloads up to 550TB per year. High level of reliability with up to 2.5 million hours MTBF. Performance-optimized for heavy application workloads. 5-year limited warranty.