Seagate IronWolf NAS 4TB HDD 3.5" Internal SATA NAS HDD, 5900 RPM, RV Sensors, 3 Year Warranty

For everything NAS, there's IronWolf. Always on and always working, IronWolf is enhanced with AgileArray technology for optimal reliability and system agility. Multi-user technology and extreme workload rates allow IronWolf to perform and scale up with your enterprise.