WD HGST Ultrastar DC HC310 HUS726T4TALA6L4 4TB 3.5" SE 512n SATA3 Hard Drive - Capacity: 4TB - Cache: 256MB - Interface: SATA 6GB/s - 7200 RPM - 3.5" Enterprise Hard Drive - Secure Erase - 0B35950 - 5 Years Limited Warranty As the industry evolves to develop purpose-built solutions for growing data storage requirements, IT managers continue to rely on lower capacity drives that are economical to acquire, yet deliver quick and reliable data access for traditional data center applications. Ultrastar DC HC310 is a low-capacity HDD, with 6TB and 4TB offerings, that helps address economic and access requirements of many traditional IT workloads. Lower capacity drives also help address architecture limitations. The Ultrastar DC HC310 is designed for traditional storage and server applications as well as distributed and scalable computing, including block and file storage architectures, providing economical capacities, fast 7200 RPM performance and lower $/unit acquisition cost to help ease budget constraints. Find out more about the Western Digital HGST Ultrastar Hard Drive on HGST's Official Website here . · SATA 6Gb/s · 512 native (512n) · 256MB Cache · 7200 RPM