External Hard Drive Deals UK
99 products • Updated 17/01/2026
WD 18TB Elements Desktop External Hard Drive - USB 3.0, Black (18TB) - £274.99
Compare prices on external hard drives from trusted brands like Seagate, Western Digital, and Toshiba. External drives offer easy plug-and-play storage for backups, media libraries, and expanding your computer's capacity.
External hard drives provide the best value per terabyte for portable storage. They're perfect for backing up your files, storing photos and videos, or expanding storage on laptops, gaming consoles, and TVs. We track prices daily from Amazon UK to help you find the best deals.
Frequently Asked Questions
What is a good price per TB for an external hard drive?
In 2025, a good price per terabyte for an external hard drive is around £15-25/TB. High-capacity desktop drives (8TB+) can drop to £12-18/TB, while portable 2.5-inch drives typically cost £20-30/TB due to their compact size.
Should I buy a portable (2.5") or desktop (3.5") external drive?
Portable 2.5-inch drives are powered via USB, making them truly portable. Desktop 3.5-inch drives require a power outlet but offer larger capacities and better value per TB. Choose portable for travel and convenience, or desktop for stationary backup and storage.
What USB connection do I need for external hard drives?
USB 3.0 (also called USB 3.2 Gen 1) offers speeds up to 5Gbps, which is plenty for hard drives. USB 3.2 Gen 2 (10Gbps) and USB-C are also common but won't make HDDs faster—they're limited by the drive's mechanical speed of around 150-200MB/s.
Can I use an external hard drive for PS4/PS5 or Xbox?
Yes, external USB drives work with gaming consoles for storing games. PS4 and Xbox support external HDDs for playing games directly. PS5 can use external HDDs for PS4 games and cold storage of PS5 games (which must be transferred to internal storage to play).