The Seagate IronWolf Pro 4TB 3.5 Inch SATA 7200RPM NAS Hard Drive is Optimized for NAS with AgileArray. AgileArray enables dual-plane balancing and RAID optimization in multi-bay environments, with the most advanced power management possible. Actively protect your NAS with IronWolf Health Management focusing on prevention, intervention, and recovery. High performance means no lag time or downtime for users during workload traffic for the NAS. Seagate leads the competition with the highest-performing NAS drive portfolio. The Seagate IronWolf Pro 4TB HDD has a Seagate Rescue Data Recovery system. IronWolf Pro comes with extra peace of mind for any mechanical, accidental, or natural disaster. With a 90% success rate of in-house recovery, Seagate has your back with a 5-year included Rescue Data Recovery plan. First in its class of drives to include RV sensors to maintain high performance in multi-drive NAS enclosures. More capacity options mean more choices that will fit within the budget. Seagate provides a scalable solution for any NAS use-case scenario. IronWolf provides a workload rate of 300TB/year. Multiple users can confidently upload and download data to the NAS server, knowing IronWolf can handle the workload, whether you are a creative professional or a small business. Access data on your NAS any time, remotely or on-site. It comes with 5 years of warranty.