![WD Red Pro 4TB NAS 3.5" Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, CMR, 256MB Cache, 5 Year Warranty : Amazon.co.uk: Computers & Accessories WD Red Pro 4TB NAS 3.5" Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, CMR, 256MB Cache, 5 Year Warranty : Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/81HGnY1dLCL._AC_UF1000,1000_QL80_.jpg)
WD Red Pro 4TB NAS 3.5" Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, CMR, 256MB Cache, 5 Year Warranty : Amazon.co.uk: Computers & Accessories
![WD Purple 4TB Surveillance 3.5" Internal Hard Drive, AllFrame Technology, 180BT/yr, 256MB Cache, 3 Year Warranty : Amazon.co.uk: Computers & Accessories WD Purple 4TB Surveillance 3.5" Internal Hard Drive, AllFrame Technology, 180BT/yr, 256MB Cache, 3 Year Warranty : Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/81FDQdbeM3L._AC_UF1000,1000_QL80_.jpg)
WD Purple 4TB Surveillance 3.5" Internal Hard Drive, AllFrame Technology, 180BT/yr, 256MB Cache, 3 Year Warranty : Amazon.co.uk: Computers & Accessories
![Western Digital Green WD40EZRX 4TB Internal SATA 3.5inch HardDrive : Amazon.co.uk: Computers & Accessories Western Digital Green WD40EZRX 4TB Internal SATA 3.5inch HardDrive : Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/81py5g+it9L.jpg)
Western Digital Green WD40EZRX 4TB Internal SATA 3.5inch HardDrive : Amazon.co.uk: Computers & Accessories
![Western Digital WD Red 4TB,Internal,5400 RPM,8.89 cm (3.5") (WD40EFRX) Hard Drive for sale online | eBay Western Digital WD Red 4TB,Internal,5400 RPM,8.89 cm (3.5") (WD40EFRX) Hard Drive for sale online | eBay](https://i.ebayimg.com/images/g/-NMAAOSw63Vj0Rho/s-l1600.jpg)
Western Digital WD Red 4TB,Internal,5400 RPM,8.89 cm (3.5") (WD40EFRX) Hard Drive for sale online | eBay
![WD Blue 4TB 3.5" Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, 256MB Cache, 2 Year Warranty : Amazon.co.uk: Computers & Accessories WD Blue 4TB 3.5" Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, 256MB Cache, 2 Year Warranty : Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/81tOxqlAM+L.jpg)
WD Blue 4TB 3.5" Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, 256MB Cache, 2 Year Warranty : Amazon.co.uk: Computers & Accessories
![WD Red Plus 4TB NAS 3.5" Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, CMR, 256MB Cache, 3 Year Warranty : Amazon.co.uk: Computers & Accessories WD Red Plus 4TB NAS 3.5" Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, CMR, 256MB Cache, 3 Year Warranty : Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/71+3EwR3ABL.jpg)
WD Red Plus 4TB NAS 3.5" Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, CMR, 256MB Cache, 3 Year Warranty : Amazon.co.uk: Computers & Accessories
![WD 4TB Internal Hard Disk WD Purple - SATA,7200rpm, 64MB & 3.5Inch @ Best Price Online | Jumia Kenya WD 4TB Internal Hard Disk WD Purple - SATA,7200rpm, 64MB & 3.5Inch @ Best Price Online | Jumia Kenya](https://ke.jumia.is/unsafe/fit-in/500x500/filters:fill(white)/product/84/4889251/1.jpg?7964)
WD 4TB Internal Hard Disk WD Purple - SATA,7200rpm, 64MB & 3.5Inch @ Best Price Online | Jumia Kenya
![Western Digital WD Red 4TB,Internal,5400 RPM,8.89 cm (3.5") (WD40EFRX) Hard Drive for sale online | eBay Western Digital WD Red 4TB,Internal,5400 RPM,8.89 cm (3.5") (WD40EFRX) Hard Drive for sale online | eBay](https://i.ebayimg.com/images/g/UMMAAOSwGw1j0Rho/s-l400.jpg)