![Toshiba MG04ACA MG04ACA400E 4 TB Hard Drive - SATA SATA/600 - 3.5inch Drive - Internal - 7200rpm - 128 MB Buffer - MG04ACA400E | Novatech Toshiba MG04ACA MG04ACA400E 4 TB Hard Drive - SATA SATA/600 - 3.5inch Drive - Internal - 7200rpm - 128 MB Buffer - MG04ACA400E | Novatech](https://content.etilize.com/900/1027903913.jpg)
Toshiba MG04ACA MG04ACA400E 4 TB Hard Drive - SATA SATA/600 - 3.5inch Drive - Internal - 7200rpm - 128 MB Buffer - MG04ACA400E | Novatech
![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
![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 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 Red NAS Hard Drive WD40EFAX - Hard drive - 4 TB - internal - 3.5" - SATA 6Gb/s - 5400 rpm - buffer: 256 MB - Peng-Gadgets WD Red NAS Hard Drive WD40EFAX - Hard drive - 4 TB - internal - 3.5" - SATA 6Gb/s - 5400 rpm - buffer: 256 MB - Peng-Gadgets](https://cdn11.bigcommerce.com/s-4g889g1j56/images/stencil/1280x1280/products/1713/2423/f892a79e-804d-4ea4-b0e0-ca75f86c50e3__41783.1597948169.jpg?c=1)
WD Red NAS Hard Drive WD40EFAX - Hard drive - 4 TB - internal - 3.5" - SATA 6Gb/s - 5400 rpm - buffer: 256 MB - Peng-Gadgets
![Seagate BarraCuda 4TB Internal Hard Disk 3.5 inch ST4000DM004 SATA 6GB/s 5400rpm 763649094402 | eBay Seagate BarraCuda 4TB Internal Hard Disk 3.5 inch ST4000DM004 SATA 6GB/s 5400rpm 763649094402 | eBay](https://i.ebayimg.com/images/g/x0AAAOSw5K5c~QB2/s-l500.jpg)
Seagate BarraCuda 4TB Internal Hard Disk 3.5 inch ST4000DM004 SATA 6GB/s 5400rpm 763649094402 | eBay
![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
![WD Elements Portable WDBU6Y0040BBK - External Hard Drive - 4 TB - Portable, USB 3.0, 5.0 Gbps - Colour: Black - Hunt Office UK WD Elements Portable WDBU6Y0040BBK - External Hard Drive - 4 TB - Portable, USB 3.0, 5.0 Gbps - Colour: Black - Hunt Office UK](https://cdn.huntoffice.co.uk/images/D/4316068-d.jpg)