Internal hard drive deals UK

In 2026, a good price per terabyte for a consumer hard drive is around £12-18/TB for high-capacity drives (8TB+). Budget drives can go as low as £10/TB for used or renewed units, while smaller capacity drives (1-4TB) typically cost £20-30/TB due to lower economies of scale.

Hard drive prices range from around £20 for a basic 500GB drive to over £400 for high-capacity 20TB+ enterprise drives. The best value is typically in the 8-16TB range, where the price per terabyte is lowest. We track prices daily from Amazon UK to show you the latest deals.

3.5-inch drives offer better value per terabyte and higher maximum capacities (up to 24TB+), making them ideal for desktops and NAS systems. 2.5-inch drives are smaller and use less power, suitable for laptops or compact builds, but typically cost more per TB and max out around 5TB.

Consumer hard drives typically last 3-5 years with regular use. Enterprise drives are rated for longer lifespans. To maximise longevity, avoid physical shocks, ensure adequate cooling, and consider that drives with higher workload ratings (measured in TB/year) are built for heavier use.

7200 RPM drives offer faster read/write speeds and are best for primary storage or frequently accessed data. 5400 RPM drives are quieter, cooler, and more energy-efficient, making them ideal for bulk storage, backups, or NAS systems where speed is less critical.

The cheapest hard drives per terabyte are typically high-capacity 8TB-20TB models, where you can find prices as low as £10-15 per TB. Renewed or refurbished drives offer even lower prices. Check our comparison table above, sorted by price per TB, to see today's best deals.

For your boot drive and frequently used applications, an SSD is strongly recommended — it is 5-30x faster than an HDD. For bulk storage, backups, and large media libraries, HDDs offer much better value per terabyte. Many users opt for both: an SSD boot drive plus an HDD for storage.

Seagate, Western Digital (WD), and Toshiba are the three main hard drive manufacturers. All three produce reliable drives. Seagate IronWolf and WD Red are popular for NAS use. For desktop storage, Seagate Barracuda and WD Blue are solid choices. Enterprise drives like Seagate Exos and WD Ultrastar offer the highest reliability ratings.