STMFSND2CLAR4000 – Data Domain 4TB 7200 RPM SAS 3.5″ HDD for Data Domain ES30 15 bay enclosures – Disk Drive Finder
HP 4TB 7200 rpm SAS-2 3.5" Internal SC Midline Hard 695510-B21
Seagate Enterprise Capacity 3.5'' HDD 4TB 7200 RPM 512e SATA 6Gb/s 128MB Cache Internal Hard Drive ST4000NM0115 - Newegg.com
WD 4TB Desktop Performance 7200 rpm SATA III 3.5" WD4005FZBX B&H
WD Red Pro 4TB 7200 RPM 3.5" Internal Hard Drive - Newegg.com
0F27001 – EMC 4TB 7200 RPM SAS 3.5″ HDD for VNX5100, 5200, 5300, 5400, 5500, 5600, 5700, 5800, 7500, 7600, 8000 series 15 disk enclosures and VNXe3300 – Disk Drive Finder
HGST/WD Ultrastar 4TB 7200 RPM 512e SATA 6Gb/s 3.5-Inch Enterprise Hard Drive (HUS726T4TALE6L4) - Newegg.com
HUS724040ALS641 – Netapp 4TB 7200 RPM SAS 3.5″ HDD for E-Series 12 bay DE1600, E2612, E2712, E5412, E5512, E5612 DA and FDE enabled – Disk Drive Finder
Seagate FireCuda 4TB 7200 RPM SATA III 6Gb/s 3.5" Internal CMR Hard Drive - Micro Center
Amazon.com: WD 4TB 3.5 Inch SATA III, 7200 RPM, 64 MB Cache Enterprise Hard Drive (WD4000FYYZ) (Renewed) : Electronics
Amazon.com: Western Digital RE WD4000FYYZ 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5in Enterprise Internal Hard Drive - OEM w/3 Year Warranty (Renewed) : Electronics
ST4000NM0023 Seagate 4TB 3.5 inch SAS Server Enterprise Hard Drive