
Seagate BarraCuda 4 TB 3.5 inch Internal Hard Drive (64 MB Cache SATA 6 GB/s up to 180 MB/s) is priced at £199.00 — stable over the last 30 days.
Price last checked: 18 Apr 2026, 16:58
The Seagate BarraCuda 4 TB 3.5 inch Internal Hard Drive is a 3.5-inch hard disk drive with a capacity of 4TB and a SATA 6 GB/s interface, offering a 64 MB cache and speeds of up to 180 MB/s. Although the product name mentions a 3.5-inch form factor, it's worth noting that some features refer to a 7mm form factor, but this specific model is 3.5-inch. This drive is suitable for users requiring high-capacity storage for their desktop systems, such as those working with large files or needing to ...

£39.79/TB
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£23.63/TB
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£30.50/TB
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£36.19/TB
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Explains how to compare SSD endurance (TBW/DWPD), warranty terms, controller/DRAM design, and real-world performance metrics like sustained writes after SLC cache, 4K QD1 latency, and thermals.
NVMe vs SATA, TLC vs QLC, DRAM cache — cut through the jargon and pick the best SSD for your PC build or upgrade.