Seagate Exos 7E8 ST4000NM0115 4TB 7200RPM 256MB Cache SATA 6Gb/s (512e) 3.5" Enterprise Hard Drive is ninth-generation drives lead the industry with a range of high-capacity enterprise drive options. Available in SATA III interfaces, these drives feature enterprise-class reliability with the power and performance efficiencies that make them ideal for capacity-optimised, 24x7 multi-drive server and storage environments. For everything Enterprise storage, there's Exos E — the safest and most powerful way to traverse the datasphere and harness its full potential. Always on and always working, the Exos E series of hard drives is loaded with advanced options for optimal performance, reliability, security and user-definable storage management. Built on generations of industry-defining innovation, Exos E is designed to work and perform consistently in enterprise-class workloads.