![Amazon.com: Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD40EZAZ : Electronics Amazon.com: Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD40EZAZ : Electronics](https://m.media-amazon.com/images/I/71duAeVO8zL.jpg)
Amazon.com: Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD40EZAZ : Electronics
![4TB HDD Disk Hard 3.5" for Desktop Computer HDD Internal Hard Disk 4T Hard Drives Disk SATA3 6Gb/s 7200RPM|Internal Hard Drives| - AliExpress 4TB HDD Disk Hard 3.5" for Desktop Computer HDD Internal Hard Disk 4T Hard Drives Disk SATA3 6Gb/s 7200RPM|Internal Hard Drives| - AliExpress](https://ae01.alicdn.com/kf/H9ad05f4aac4e45d298babc2b9a2830da4/4TB-HDD-Disk-Hard-3-5-for-Desktop-Computer-HDD-Internal-Hard-Disk-4T-Hard-Drives.jpg_Q90.jpg_.webp)
4TB HDD Disk Hard 3.5" for Desktop Computer HDD Internal Hard Disk 4T Hard Drives Disk SATA3 6Gb/s 7200RPM|Internal Hard Drives| - AliExpress
![Amazon.com: Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 : Electronics Amazon.com: Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 : Electronics](https://m.media-amazon.com/images/I/71ijXHv0jHL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 : Electronics
![Seagate Barracuda Pro ST4000DM006 4 TB 3.5" Internal Hard Disk Drive (HDD) SATA III 6.0Gb/s 7200 RPM 128 MB (20PK) | Fast Server Corp. www.srvfast.com Seagate Barracuda Pro ST4000DM006 4 TB 3.5" Internal Hard Disk Drive (HDD) SATA III 6.0Gb/s 7200 RPM 128 MB (20PK) | Fast Server Corp. www.srvfast.com](https://www.srvfast.com/media/catalog/product/cache/73f179befb2b664ec3794b7759101d79/s/t/st4000dm006-pf1.jpg)
Seagate Barracuda Pro ST4000DM006 4 TB 3.5" Internal Hard Disk Drive (HDD) SATA III 6.0Gb/s 7200 RPM 128 MB (20PK) | Fast Server Corp. www.srvfast.com
![Amazon.com: Western Digital Red Pro 4TB 3.5-Inch 7200rpm 64MB Cache NAS Hard Drive (WD4002FFWX) : Electronics Amazon.com: Western Digital Red Pro 4TB 3.5-Inch 7200rpm 64MB Cache NAS Hard Drive (WD4002FFWX) : Electronics](https://m.media-amazon.com/images/I/51z-0u+2dTL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Western Digital Red Pro 4TB 3.5-Inch 7200rpm 64MB Cache NAS Hard Drive (WD4002FFWX) : Electronics
![HGST Ultrastar 4TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5inch Internal Desktop Hard Drive (for PC, Mac, NAS, RAID, Surveillance System) - 3 Year Warranty - Walmart.com HGST Ultrastar 4TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5inch Internal Desktop Hard Drive (for PC, Mac, NAS, RAID, Surveillance System) - 3 Year Warranty - Walmart.com](https://i5.walmartimages.com/asr/a50312c6-0dbb-4e5d-a8c4-6cbb024b7637_1.e13708e6927586e3e3ad30a53b29e533.jpeg?odnHeight=612&odnWidth=612&odnBg=FFFFFF)
HGST Ultrastar 4TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5inch Internal Desktop Hard Drive (for PC, Mac, NAS, RAID, Surveillance System) - 3 Year Warranty - Walmart.com
![Amazon.com: Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 : Electronics Amazon.com: Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 : Electronics](https://m.media-amazon.com/images/I/818Zr2FoBWL.jpg)