HGST MegaScale DC 4000.B HMS5C4040ALE640 (0F19847) 4TB Coolspin 64MB Cache SATA III 6.0Gb/s 3.5" Enterprise Hard Drive

Toshiba

Toshiba MG04ACA400N 4TB 64MB Cache 7200RPM SATA III 6.0Gb/s 3.5" Internal Enterprise NAS Hard Drive

TOSHIBA MG03ACA400 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Hard Drive Bare Drive

Hitachi

Hitachi 4TB 7200RPM 64MB SATA 6.0Gb/s 3.5" HARD DRIVE HUS724040ALA640

Hitachi

HGST Ultrastar 7K6000 HUS726040ALE610 (0F23005) 4TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Enterprise Hard Drive Bare Drive

Hitachi

Hitachi 4TB 7200RPM 64MB SATA 6.0Gb/s 3.5" HARD DRIVE 0F19459

WD Se WD2000F9YZ 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Hard Drive

Seagate NAS HDD ST4000VN000 4TB 64MB Cache SATA 6.0Gb/s Internal Hard Drive

Hitachi

Hitachi 4TB 7200RPM 64MB SATA 6.0Gb/s 3.5" HARD H3U40006472S

TOSHIBA MG03ACA200 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Hard Drive Bare Drive (MG03ACA200)