20TB Drives, Ranked by £/TB

HDD · SSD · NVMe · NAS · SAS · tape, all on Amazon.co.uk

Updated 1 hour ago

As an Amazon Associate we earn from qualifying purchases. Prices and availability shown are from Amazon.co.uk at the last update and may change.

This page gathers every 20TB drive we track on Amazon.co.uk and ranks it by price per terabyte, so you can see the best value 20TB option across hard drives, SSDs and NVMe in one place. UK prices refresh through the day, which matters because storage prices move often. At a fixed 20TB capacity the price per terabyte tells you which drive and which technology gives you the most for your money right now. Use the type and brand filters to narrow to the format you need, then check the Prime column for fast UK delivery before you buy.

Cheapest £/TB in this segment
£24.33
Drives tracked
23
Prices updated
1 hour ago
Price per
23 UK products
ProductCapacityPrice£/TBTechPrime
WD 20TB Elements External Hard Drive, Desktop HDD storage, USB 3.0 compatible, Fast Transfer rates, Plug-and-play storage for all your pictures, videos, music and documents, Black20 TB£486.50£24.33HDD · USB-
Seagate Exos X20 20TB Internal Hard Drive - 3.5 Inch Hyperscale SATA 6GB/s HDD, 7,200 RPM, 2.5M MTBF, 512e and 4Kn FastFormat, Low Latency with Enhanced Caching (ST20000NM007D)20 TB£493.35£24.67HDD · SATAPrime
Seagate Expansion Desktop 20TB, External Hard Drive, USB 3.0, Data Rescue Services (STKP20000400)20 TB£548.00£27.40HDD · USB-
Seagate One Touch Hub 20TB, External Hard Drive Desktop HDD, USB-C & USB 3.0 port, for Computer Desktop Workstation PC Laptop Mac (STLC20000400)20 TB£580.63£29.03HDD · USBPrime
Oyen Digital HDX Pro C 20TB USB-C 7200RPM Enterprise External Hard Drive20 TB£662.97£33.15HDD · USBPrime
Seagate IronWolf Pro ST20000NE00 RV sensor 8.9 cm (3.5") NAS 20TB HDD (CMR)20 TB£675.00£33.75HDD · SATA-
Seagate IronWolf Pro, NAS Internal Hard Drive 20TB HDD, 3.5 Inch, 7200 rpm, CMR, 256 MB Cache, SATA 6GB/S, Silver, Model No.: ST20000NE00020 TB£675.00£33.75HDD · SATA-
Toshiba 20TB Enterprise Internal Hard Drive – MG Series 3.5" SATA HDD for Server, Storage, 24/7 Operation, Hyperscale, Cloud (MG10ACA20TE)20 TB£685.99£34.30HDD · SATA-
WD Red Pro 20TB NAS 3.5" Internal Hard Drive - 7200 RPM, SATA 6 Gb/s, CMR, 512MB Cache20 TB£688.99£34.45HDD · SATAPrime
Seagate IronWolf Pro 20TB, Enterprise Internal NAS HDD, CMR 3.5 Inch, SATA 6GB/s, 7.200 RPM, 256MB Cache for RAID NAS, Rescue Services - Frustration Free Packaging (ST20000NTZ01)20 TB£690.00£34.50HDD · SATA-
Seagate Barracuda 20TB Internal Hard Drive, 7200 U/Min, 512MB Cache, SATA 6Gb/s, 3.5" (ST20000DM001)20 TB£712.56£35.63HDD · SATA-
WD Gold 20TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 512MB Cache 3.5 Inch20 TB£744.00£37.20HDD · SATA-
WD Red Pro 20TB NAS 3.5" Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, CMR Recording Technology, 512MB Cache20 TB£779.99£39.00HDD · SATA-
LaCie d2 Professional 20TB — USB‑C Desktop External Hard Drive, for Mac & Windows — Rescue Data Recovery included20 TB£840.20£42.01HDD · USB-
Seagate Exos X24 ST20000NM007H - 20TB20 TB£897.56£44.88HDD · SATA-
Synology DS223 20TB 2 Bay Desktop NAS Solution installed with 2 x 10TB Western Digital Red Plus Drives20 TB£998.98£49.95HDD · SATA-
Synology DS223J 20TB 2 Bay NAS Solution installed with 2 x 10TB Western Digital Red Plus Drives20 TB£999.00£49.95HDD · SATA-
Synology Enterprise internal hard drive 20 TB 7200 RPM 512 MB 3.5" Serial ATA III20 TB£1,059.97£53.00HDD · SATAPrime
Synology DS223J 20TB 2 Bay NAS Solution installed with 2 x 10TB Seagate Ironwolf Drives20 TB£1,079.99£54.00HDD · SATA-
iStorage diskAshur DT3 256-bit 20TB - FIPS Level 3 Certified - Secure encrypted Desktop Hard Drive - Password Protected20 TB£1,309.84£65.49HDD · SATA-
Western Digital 20TB My Book Duo Desktop RAID External Hard Drive HDD, USB 3.1, With Password Protection and Auto Backup Software - WDBFBE0200JBK-NESN20 TB£1,392.11£69.61HDD · USB-
Synology DX517 20 TB 5 Bay Expansion Solution | Installed with 5 x 4 TB Seagate IronWolf Drives20 TB£1,429.88£71.49HDD · SATA-
QNAP TS-253E-8G/20TB 2 Bay Desktop NAS Unit with Seagate IronWolf Drives20 TB£1,496.88£74.84HDD · SATA-

Frequently asked questions

What is the cheapest 20TB drive in the UK?

The table is sorted by price per terabyte, so the cheapest 20TB drive on Amazon.co.uk is at the top and updates through the day.

Is a 20TB SSD or hard drive better value?

At 20TB a hard drive almost always has a lower price per terabyte, while an SSD costs more but is much faster. Filter by type to compare.

How much should a 20TB drive cost in the UK?

Prices change often, so the live table is the best guide. Sorting by price per terabyte shows whether a 20TB deal is genuinely good value.

Last updated at 2026-06-22 06:50:13 UTC. As an Amazon Associate I earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed at the time of purchase will apply to the purchase of the product. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON SERVICES LLC.