Seagate 4TB 7.2K SAS Hard Drive 3.5 inch 12Gbps HDD - ST4000NM0025
Seagate ST4000NM0025 4TB 7.2K SAS Hard Drive. The Enterprise Capacity 3.5 HDD is built to support enterprise-class nearline workloads of up 550 TB per year, which is up to 10× the rated workload of desktop HDDs.