4TB Seagate Ironwolf ST4000NT001 3.5″ Internal NAS Hard Disk Drive (HDD)

4TB Seagate ST4000NT001 Nas hdd (IronWolf), designed for multi-bay NAS systems with Dual-Plane balance + NASWorks error recovery control, Sata3(6Gb / s), 256mb cache, 7200rpm, sustained data rate – 250mb / sec