Internal Hard Drive Deals UK
110 products • Updated 15/02/2026
MaxDigitalData (MD6000GSA12872E) 6TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive (Enterprise Grade) - 3 Years Warranty (Renewed) (6TB) - £102.01
Compare prices on internal hard drives (HDDs) from leading brands like Seagate, Western Digital, and Toshiba. Our price-per-terabyte comparison helps you find the best value storage for your desktop PC, NAS, or server.
Hard drives remain the most cost-effective option for bulk storage, with prices as low as £10-15 per terabyte for high-capacity models. While SSDs offer faster speeds, HDDs provide unbeatable value for storing large media libraries, backups, and archives. We track prices daily from Amazon UK to ensure you always see the latest deals.
Choosing the Right Hard Drive
When shopping for a hard drive, consider your use case. Desktop drives (3.5-inch) like the Seagate Barracuda and WD Blue offer the best price per TB for everyday use. NAS drives such as the Seagate IronWolf and WD Red are optimised for always-on network storage with features like vibration resistance and error recovery. Enterprise drives like the Seagate Exos and WD Ultrastar deliver the highest capacities (up to 24TB+) and are designed for 24/7 operation in data centres.
For the absolute cheapest storage per terabyte, look at drives in the 8TB-20TB range — this is where the price per TB is lowest. If you need a drive for a laptop, 2.5-inch models max out at about 5TB but are more compact and use less power. Our table below is sorted by price per terabyte by default to help you find the best deal instantly.
Frequently Asked Questions
What is a good price per TB for a hard drive in 2026?
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.
How much does a hard drive cost?
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.
Should I buy a 3.5-inch or 2.5-inch hard drive?
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.
How long do hard drives last?
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.
What RPM should I choose for my hard drive?
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.
What is the cheapest hard drive per terabyte?
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.
Should I buy an HDD or SSD for my PC?
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.
What hard drive brands are most reliable?
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.