Best 20TB storage, ranked by $/TB

SSD · NVMe · hard drive · external · NAS · SAS · microSD, all on Amazon.ca

CanadaUnited States
Updated 5 hours ago

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20TB drives are high-capacity territory, almost always 3.5-inch hard drives for NAS, servers and bulk archives. At this size the price per terabyte is usually at its lowest, which is why 20TB and the 14-18TB band around it are the value sweet spot for mass storage. This table ranks every 20TB drive we track on Amazon.ca by live price per terabyte, so you can find the cheapest capacity per dollar.

Best price per TB
CA$43.40
Products tracked
24
Prices updated
5 hours ago
Price per
24 products
ProductCapacityPriceCA$ / TBTechPrimeBuy
Seagate Skyhawk Ai 20 Tb 3.5 12 Tb Serial Ata Iii, W128854400 (Serial Ata Iii)20 TBCA$868.00CA$43.40HDD · SATA-Buy on Amazon
Seagate Expansion 20TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP20000400)20 TBCA$884.99CA$44.25HDD · USB-Buy on Amazon
WD 20TB Elements Desktop External Hard Drive, USB 3.0 external hard drive for plug-and-play storage - WDBWLG0200HBK-NESNUsed20 TBCA$999.99CA$50.00HDD · USB-Buy on Amazon
Seagate Exos X20 ST20000NM003D 20 TB Hard Drive - Internal - SAS (12Gb/s SAS) - Conventional Magnetic Recording (CMR) Method20 TBCA$1,000.00CA$50.00SAS-Buy on Amazon
Seagate Exos X20 ST20000NM002D 512E/4KN SAS 12Gb/s 20TB 7200RPM 256MB Enterprise Hard Drive20 TBCA$1,000.00CA$50.00SAS-Buy on Amazon
Western Digital Ultrastar DC HC560 WUH722020BLE601 0F38781 20TB 7200 RPM SATA 6Gb/s 512e 512MB Cache Power Disable 3.5in Enterprise Hard Drive (Renewed)Renewed20 TBCA$1,027.67CA$51.38HDD · SATA-Buy on Amazon
Water Panther WP Arsenal 20TB SATA 7200RPM 3.5-Inch DAS Hard Drive (Renewed)Renewed20 TBCA$1,091.01CA$54.55HDD · SATA-Buy on Amazon
Western Digital Ultrastar DC HC560 WUH722020BLE6L1 0F38784 20TB 7200 RPM SATA 6Gb/s 512e 512MB 3.5in Enterprise Hard Drive (Renewed)Renewed20 TBCA$1,091.01CA$54.55HDD · SATA-Buy on Amazon
Western Digital WD Ultrastar HC560 WUH722020BLE6L4 20TB 7200RPM 3.5"" SE SATA HDD 0F38785 (Renewed)Renewed20 TBCA$1,091.01CA$54.55HDD · SATA-Buy on Amazon
Seagate Exos X20 ST20000NM002D 512E/4KN SAS 12Gb/s 20TB 7200RPM 256MB Enterprise Hard Drive (Renewed)Renewed20 TBCA$1,106.84CA$55.34SAS-Buy on Amazon
Seagate Exos X24 ST20000NM002H 20TB20 TBCA$1,199.99CA$60.00HDD · SATA-Buy on Amazon
Western Digital 20TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD202KFGX20 TBCA$1,200.59CA$60.03HDD · SATAPrimeBuy on Amazon
Seagate Skyhawk AI 20TB Video Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 512MB Cache for DVR NVR Security Camera System with in-House Rescue Services (ST20000VE003)20 TBCA$1,234.99CA$61.75HDD · SATA-Buy on Amazon
Seagate IronWolf Pro 20TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage, Rescue Services (ST20000NTZ01/ST20000NT001)20 TBCA$1,234.99CA$61.75HDD · SATA-Buy on Amazon
WD 20TB Elements Desktop External Hard Drive, USB 3.0 external hard drive for plug-and-play storage - WDBWLG0200HBK-NESN20 TBCA$1,239.99CA$62.00HDD · USBPrimeBuy on Amazon
Seagate Exos X20 ST20000NM007D 20TB 7.2K RPM SATA 6Gb/s 3.5in Hard Drive (Renewed)Renewed20 TBCA$1,246.95CA$62.35HDD · SATA-Buy on Amazon
Seagate Exos X20 ST20000NM003D 20TB 7200 RPM SAS 12Gb/s 512e 256MB SED 3.5in Enterprise Hard Drive (Renewed)Renewed20 TBCA$1,333.68CA$66.68SAS-Buy on Amazon
Seagate Exos X20 20TB Enterprise HDD - CMR 3.5 Inch Hyperscale SATA 6Gb/s, 7200 RPM, 512e and 4Kn FastFormat, Low Latency with Enhanced Caching - ST20000NM007D (Renewed)Renewed20 TBCA$1,371.65CA$68.58HDD · SATA-Buy on Amazon
Seagate Barracuda 7200.10 Hard Drive - 20 TB - Internal - 3.5 inch - SATA 6 Gb/s - 7200 RPM - Buffer: 512 MB20 TBCA$1,413.79CA$70.69HDD · SATA-Buy on Amazon
Western Digital 20TB WD Gold Enterprise Class SATA Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD203KRYZ20 TBCA$1,544.99CA$77.25HDD · SATAPrimeBuy on Amazon
WD 20TB Elements Desktop External Hard Drive - USB 3.0, Black20 TBCA$1,618.20CA$80.91HDD · USB-Buy on Amazon
Western Digital 20TB WD Ultrastar DH HC560 7200RPM 512MB Ent,20 TBCA$1,793.96CA$89.70HDD · SATA-Buy on Amazon
Western Digital Ultrastar WUH722020CLE6L4 20 TB Hard Drive - 3.5" Internal - SATA - Energy-Assisted Magnetic Recording (EAMR) Method20 TBCA$1,981.81CA$99.09HDD · SATA-Buy on Amazon
Seagate Exos X20 ST20000NM000D 20 TB Hard Drive - Internal - SATA (SATA/600) - Conventional Magnetic Recording (CMR) Method - Storage System, Video Surveillance System Device Supported - 7200rpm - 28520 TBCA$2,784.00CA$139.20HDD · SATA-Buy on Amazon

Frequently asked questions

Is a 20TB drive good value?

Often yes. High-capacity drives usually have the lowest price per terabyte, so 20TB can be excellent value for bulk storage.

What is the cheapest 20TB drive?

The table above is sorted by price per terabyte, so the best value 20TB options are at the top. Prices update daily from Amazon.ca.

20TB SSD or hard drive?

20TB is almost always a hard drive; SSDs at this size are rare and expensive.

Last updated: 2026-10-31 06:03:19 UTC. As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date indicated on Amazon.ca and are subject to change. Any price displayed at the time of purchase will apply. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON SERVICES LLC. THIS CONTENT IS PROVIDED AS IS AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.