Seagate ST16000NT001 16TB IronWolf Pro 3.5″ SATA NAS Hard Drive – Capacity: 16TB – Max. Sustained Transfer Rate OD: 270MB/s – Interface: SATA 6Gb/s – Drive Design: Helium – Workload Rate Limit: 550 – Cache (MB): 256 – RPM: 7200 – Sector Size: 512E – Drive Bays Supported: Unlimited – MTBF: 2.5 Million Hours – Recording Technology: CMR – ST16000NT001