Amazon.com: Seagate IronWolf Pro 4TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 128MB Cache for RAID Network Attached Storage, Data Recovery Service – Frustration Free Packaging (ST4000NEZ01) : Electronics
Amazon.com: Seagate 4TB Enterprise Capacity HDD 7200RPM SATA 6Gbps 128 MB Cache Internal Bare Drive (ST4000NM0033) : Electronics
Amazon.com: Seagate BarraCuda Pro 4TB Internal Hard Drive Performance HDD – 3.5 Inch SATA 6 Gb/s 7200 RPM 128MB Cache for Computer Desktop PC, Data Recovery (ST4000DM006) : Electronics
1CE168-300 Seagate SATA 6.0 Gbps 4TB Hard Drive
Amazon.com: Seagate Enterprise Capacity ST4000NM0025 4TB 7200RPM SAS 6.0 GB/S 128MB 512N Enterprise Hard Drive (Renewed) : Electronics
Amazon.com: Seagate 4TB IronWolf Pro 7200RPM SATA 6Gb/s 128MB Cache 3.5-Inch NAS Hard Disk Drive (ST4000NE0025) (Renewed) : Electronics
Seagate 4TB Exos 7E8 512n SATA 3.5" Internal HDD ST4000NM0035
ST4000NM0033 Seagate Constellation ES.3 4TB 7200RPM SATA 6Gbps 128MB Cache (512n) 3.5-inch Internal Hard Drive
Amazon.com: Seagate Enterprise 4TB Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM, 256MB Cache (ST4000NM004C) : Electronics
Amazon.com: Seagate BarraCuda Pro 4TB Internal Hard Drive Performance HDD – 3.5 Inch SATA 6 Gb/s 7200 RPM 128MB Cache for Computer Desktop PC, Data Recovery (ST4000DM006) : Electronics