20TB Drives, Ranked by £/TB

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

Updated 7 minutes ago

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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

£25.25

Drives tracked

Prices updated

7 minutes ago

TypeForm factorInterfaceMin capacityConditionBrand

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26 UK products

Product	Capacity	Price	£/TB	Tech	Prime	Buy
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, Black	20 TB	£504.98	£25.25	HDD · USB	Prime	Buy on Amazon
Seagate 20TB One Touch Desktop Hard Drive \| USB-C (STNB20000400)	20 TB	£516.99	£25.85	HDD · USB	Prime	Buy on Amazon
Seagate Technology Exos X20, 20TB, 3.5-Inch SATA Hard Drive at 6GB/s, 7,200 RPM, 512e and 4Kn FastFormat, Low Latency with Enhanced Cache (ST20000NM007D), Green (Renewed)	20 TB	£536.86	£26.84	HDD · SATA	-	Buy on Amazon
Seagate 20TB Expansion Desktop Hard Drive \| USB 3.0 (STKP20000400)	20 TB	£590.00	£29.50	HDD · USB	-	Buy on Amazon
Toshiba X300 20TB Performance & Gaming 3.5" Internal Hard Drive - CMR SATA 6GB/s 7200RPM 512MB Cache - HDWR62AXZSTA	20 TB	£692.11	£34.61	HDD · SATA	Prime	Buy on Amazon
Seagate IronWolf Pro, NAS Internal Hard Drive 20TB HDD, 3.5 Inch, 7200 rpm, CMR, 256 MB Cache, SATA 6GB/S, Silver, Model No.: ST20000NE000	20 TB	£715.00	£35.75	HDD · SATA	-	Buy on Amazon
Seagate IronWolf Pro ST20000NE00 RV sensor 8.9 cm (3.5") NAS 20TB HDD (CMR)	20 TB	£735.00	£36.75	HDD · SATA	-	Buy on Amazon
Seagate 20TB IronWolf Pro Internal NAS Hard Drive \| SATA (ST20000NTZ01) \| 7200 RPM. Professional NAS HDD. 24/7 performance, AgileArray, All-CMR, 550TB/year, health monitoring.	20 TB	£785.47	£39.27	HDD · SATA	-	Buy on Amazon
WD Red Pro 20TB NAS 3.5" Internal Hard Drive - 7200 RPM, SATA 6 Gb/s, CMR, 512MB Cache	20 TB	£949.53	£47.48	HDD · SATA	-	Buy on Amazon
LaCie 20TB d2 Professional \| USB-C (STHA20000800)	20 TB	£963.77	£48.19	HDD · USB	-	Buy on Amazon
Synology Enterprise internal hard drive 20 TB 7200 RPM 512 MB 3.5" Serial ATA III	20 TB	£998.88	£49.94	HDD · SATA	Prime	Buy on Amazon
WD Red Pro 20TB NAS 3.5" Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, CMR Recording Technology, 512MB Cache	20 TB	£999.00	£49.95	HDD · SATA	-	Buy on Amazon
Synology DS223J 20TB 2 Bay NAS Solution installed with 2 x 10TB Western Digital Red Plus Drives	20 TB	£999.00	£49.95	HDD · SATA	-	Buy on Amazon
LaCie 20TB 1big Dock \| Thunderbolt 3 (STHS20000800) \| Desktop HDD for creative workflows, CF/SD readers, 60W charging. Adobe CC trial included. 5-Year Warranty + 5-Year Rescue	20 TB	£1,060.56	£53.03	HDD · Thunderbolt	-	Buy on Amazon
Synology DS223J 20TB 2 Bay NAS Solution installed with 2 x 10TB Seagate Ironwolf Drives	20 TB	£1,079.99	£54.00	HDD · SATA	-	Buy on Amazon
Synology DS223 20TB 2 Bay Desktop NAS Solution installed with 2 x 10TB Western Digital Red Plus Drives	20 TB	£1,097.99	£54.90	HDD · SATA	-	Buy on Amazon
Synology DS223 20TB 2 Bay Desktop NAS Solution installed with 2 x 10TB Seagate Ironwolf Drives	20 TB	£1,137.99	£56.90	HDD · SATA	-	Buy on Amazon
Synology HAS5310-20T HDD with 20TB	20 TB	£1,140.83	£57.04	HDD · SATA	-	Buy on Amazon
Western Digital 20TB WD Ultrastar DH HC560 7200RPM 512MB Ent,	20 TB	£1,309.06	£65.45	HDD · SATA	-	Buy on Amazon
iStorage diskAshur DT3 256-bit 20TB - FIPS Level 3 Certified - Secure encrypted Desktop Hard Drive - Password Protected	20 TB	£1,321.38	£66.07	HDD · SATA	-	Buy on Amazon
LaCie 2big Dock RAID, 20TB, externe HDD, for PC Mac iPad & iPhone, Data Rescue Service (STLG20000400)	20 TB	£1,391.49	£69.57	HDD · SATA	-	Buy on Amazon
Synology DX517 20 TB 5 Bay Expansion Solution \| Installed with 5 x 4 TB Seagate IronWolf Drives	20 TB	£1,429.88	£71.49	HDD · SATA	-	Buy on Amazon
WD 20TB 0F38785 SE Ultrastar 7200 SA3	20 TB	£1,452.75	£72.64	HDD · SATA	-	Buy on Amazon
QNAP TS-253E-8G/20TB 2 Bay Desktop NAS Unit with Seagate IronWolf Drives	20 TB	£1,496.88	£74.84	HDD · SATA	-	Buy on Amazon
Seagate Technology Exos X20, 20TB, 3.5-Inch SATA Hard Drive at 6GB/s, 7,200 RPM, 2.5M MTBF, 512e and 4Kn FastFormat, Low Latency with Enhanced Cache (ST20000NM007D), Green	20 TB	£1,618.22	£80.91	HDD · SATA	-	Buy on Amazon
Western Digital 20TB My Book Duo Desktop RAID External Hard Drive HDD, USB 3.1, With Password Protection and Auto Backup Software - WDBFBE0200JBK-NESN	20 TB	£1,766.30	£88.32	HDD · USB	-	Buy on Amazon

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 2026-10-17 18:03:00 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.