![Seagate BarraCuda, 4TB, Internal Hard Drive, 3.5 Inch, SATA, 6GB/s, 5,400 RPM, 256MB Cache, for Computer Desktop PC, FFP (ST4000DMZ04) : Amazon.co.uk: Computers & Accessories Seagate BarraCuda, 4TB, Internal Hard Drive, 3.5 Inch, SATA, 6GB/s, 5,400 RPM, 256MB Cache, for Computer Desktop PC, FFP (ST4000DMZ04) : Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/71ijXHv0jHL._AC_SY450_.jpg)
Seagate BarraCuda, 4TB, Internal Hard Drive, 3.5 Inch, SATA, 6GB/s, 5,400 RPM, 256MB Cache, for Computer Desktop PC, FFP (ST4000DMZ04) : Amazon.co.uk: Computers & Accessories
![Wd Blue 4tb Hdd Hard Drive Disk Hd Sata Iii 256mb Cache 5400 Rpm 4 Tb 3.5" 35 Harddisk For Desktop Pc Computer - Hard Disk Drive - AliExpress Wd Blue 4tb Hdd Hard Drive Disk Hd Sata Iii 256mb Cache 5400 Rpm 4 Tb 3.5" 35 Harddisk For Desktop Pc Computer - Hard Disk Drive - AliExpress](https://ae01.alicdn.com/kf/H4525f2f269944c52893db235d542e20fj/WD-Blue-4TB-HDD-Hard-Drive-Disk-HD-SATA-III-256MB-Cache-5400-RPM-4-TB.jpg)
Wd Blue 4tb Hdd Hard Drive Disk Hd Sata Iii 256mb Cache 5400 Rpm 4 Tb 3.5" 35 Harddisk For Desktop Pc Computer - Hard Disk Drive - AliExpress
![WD My Book WDBBGB0040HBK - Hard drive - encrypted - 4 TB - external (desktop) - USB 3.0 - black | Dell UK WD My Book WDBBGB0040HBK - Hard drive - encrypted - 4 TB - external (desktop) - USB 3.0 - black | Dell UK](https://snpi.dell.com/snp/images/products/large/en-uk~A9432869/A9432869.jpg)
WD My Book WDBBGB0040HBK - Hard drive - encrypted - 4 TB - external (desktop) - USB 3.0 - black | Dell UK
![WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch : Amazon.co.uk: Computers & Accessories WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch : Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/81DRB0+o1eL._AC_SY679_.jpg)
WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch : Amazon.co.uk: Computers & Accessories
![Seagate SkyHawk Surveillance HDD ST4000VX013 - Hard drive - 4 TB - internal - SATA 6Gb/s - buffer: 256 MB,Blue,3.5" : Amazon.co.uk: Computers & Accessories Seagate SkyHawk Surveillance HDD ST4000VX013 - Hard drive - 4 TB - internal - SATA 6Gb/s - buffer: 256 MB,Blue,3.5" : Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/71BI+mVv0pL._AC_SL1500_.jpg)
Seagate SkyHawk Surveillance HDD ST4000VX013 - Hard drive - 4 TB - internal - SATA 6Gb/s - buffer: 256 MB,Blue,3.5" : Amazon.co.uk: Computers & Accessories
![WD_BLACK 4TB Performance 3.5" Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 256MB Cache : Amazon.co.uk: Computers & Accessories WD_BLACK 4TB Performance 3.5" Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 256MB Cache : Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/717DV7NzxkS._AC_SY450_.jpg)