
Synology Internal NAS HDD 4TB SATA 7200rpm 3.5" is priced at £229.99 — stable over the last 30 days.
Price last checked: 18 Apr 2026, 16:58
The Synology Internal NAS HDD 4TB SATA 7200rpm 3.5" is a 4TB, 3.5-inch hard drive designed for demanding environments, offering a high level of reliability with a mean time to failure of up to 2.5 million hours. It features Persistent Write Cache Technology to minimise data damage in the event of a power failure and optimised firmware for improved sequential reading performance. This drive is suitable for use in Synology NAS systems, particularly for users requiring a reliable storage solutio...

£55.00/TB
Updated 51m ago

£63.02/TB
Updated 52m ago


£39.63/TB
Updated 50m ago
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.