
WD Red Plus 4TB NAS 3.5" Internal Hard Drive - 5400 RPM, SATA 6 Gb/s, CMR, 256MB Cache is priced at £122.42 — stable over the last 30 days.
Price last checked: 18 Apr 2026, 16:53
The WD Red Plus 4TB NAS 3.5" Internal Hard Drive is a 3.5-inch hard disk drive with a capacity of 4TB, featuring a SATA 6 Gb/s interface and 5400 RPM spin speed. This drive is designed for continuous operation in NAS systems, with Western Digital's NASware technology fine-tuning drive parameters for increased performance and reliability. It is suitable for users requiring a reliable storage solution for their network-attached storage systems, such as small businesses or home offices with mult...

£36.00/TB
Updated 1h ago

£31.00/TB
Updated 53m ago

£37.07/TB
Updated 53m ago

£38.11/TB
Updated 52m 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.