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
ST4000DXA05 Seagate FireCuda 4TB 7200RPM SATA 6Gbps 256MB Cache (512e)
MaxDigitalData MD4000GSA6472DVR 4TB 7200RPM 64MB Cache SATA III (6.0Gb/s) (Surveillance Storage) 3.5" Internal Hard
Seagate Barracuda Pro ST4000DM006 4 TB 3.5" Internal Hard Disk Drive (HDD) SATA III 6.0Gb/s 7200 RPM 128 MB | Fast Server Corp. www.srvfast.com
Western Digital Gold WD4003FRYZ 4 TB Hard Drive 3.5 Internal SATA SATA600 Server Storage System Device Supported 7200rpm 5 Year Warranty - Office Depot
Western digital RE 4TB 3TB 2TB Internal Enterprise Hard Drive 3.5 Inch 7200 RPM SATA III 64 MB Cache For DVR NVR PC - AliExpress
Supermicro 4TB 3.5" HDD-T4000-WD4000FYYZ Internal Hard Drive
005051358 – Data Domain 4TB 7200 RPM SAS 3.5″ HDD for Data Domain DS60, 60 bay enclosures – Disk Drive Finder
WD Red Pro 4TB 7200 RPM 3.5" Internal Hard Drive - Newegg.com