Lowest per TB · Lowest priceSeagate BarraCuda 4TB, Internal Hard Drive, 3.5 Inch, SATA, 6GB/s, 5.400 RPM, 256MB Cache, for Computer Desktop PC, FFP (ST4000DMZ04)
Seagate·4TB
£137.11
£34.28/TB per TB
4TB hard drives provide generous storage for media collections, photography libraries, and growing data needs. At this capacity, the price per terabyte starts to become very competitive, making them excellent value for NAS and backup use.
All prices are tracked daily from Amazon UK. Use the filters to narrow by brand and condition. Sorted by price per terabyte for the best value 4TB hard drives.
As an Amazon Associate we earn from qualifying purchases. Prices shown are from Amazon UK in GBP and were accurate as of 26 July 2026; they are subject to change. The price and availability shown on Amazon at the time of purchase is the one that applies.
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Most popularSeagate IronWolf 4TB, NAS, Internal Hard Drive, CMR, 3.5 Inch, SATA, 6GB/s, 5.400 RPM, 256MB Cache, for RAID Network Attached Storage, Data Rescue Services (ST4000VNZ06)
Seagate·4TB
£155.00
£38.75/TB per TB
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