Best Internal Hard Drives

Seagate BarraCuda, 8 TB, Internal Hard Drive, SATA 6 Gbit/s, 3.5", 5400 RPM, 256 MB Cache for Desktop PC (ST8000DM004)

Seagate IronWolf, 4TB, NAS, Internal Hard Drive, CMR, 3.5 Inch, SATA, 6GB/s, 5,400 RPM, 256MB Cache, for RAID Network Attached Storage, 3 year Rescue Services, FFP (ST4000VNZ06)

Seagate Skyhawk, 4TB, Video Internal Hard Drive, 3.5", SATA, 6Gb/s, 64MB Cache, for DVR/NVR Security Camera System, with Drive Health Management, 3 year Rescue Services, FFP (ST4000VXZ16)

Seagate Enterprise Capacity v7 ST12000NM0127 - Hard Drive - 12 TB - Internal - 3.5 Inch - SATA 6Gb/s - 7200 RPM - 256MB Cache (Refurbished)

Seagate IronWolf Pro, 16 TB, NAS Internal Hard Drive, CMR 3.5 Inch, SATA 6 Gb/s 7,200 RPM, 256 MB Cache, for RAID Network Attached Storage, 3 years Rescue Services, FFP (‎ST16000NE000)

Seagate Enterprise Capacity v6 10TB Internal Hard Drive ST10000NM0046 SATA 3.5" HDD 256MB Cache

Seagate BarraCuda, 2TB, Internal Hard Drive, 3.5 Inch, SATA 6GB/s, 7.200 RPM, 64MB Cache, for Computer Desktop PC, FFP (ST2000DMZ08)

WD Red Plus 12TB NAS 3.5" Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, CMR, 256MB Cache, 3 Year Warranty

Toshiba 2TB S300 Surveillance HDD - 3.5' SATA Internal Hard Drive Supports up to 64 HD cameras at a 180TB/Year workload (HDWT720UZSVA)

WD Red Pro 4TB NAS 3.5" Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, CMR, 256MB Cache, 5 Year Warranty