Best 20TB storage, ranked by $/TB
SSD · NVMe · hard drive · external · NAS · SAS · microSD, all on Amazon.ca
As an Amazon Associate we earn from qualifying purchases. Prices and availability come from Amazon.ca as of the last update and may change.
20TB drives are high-capacity territory, almost always 3.5-inch hard drives for NAS, servers and bulk archives. At this size the price per terabyte is usually at its lowest, which is why 20TB and the 14-18TB band around it are the value sweet spot for mass storage. This table ranks every 20TB drive we track on Amazon.ca by live price per terabyte, so you can find the cheapest capacity per dollar.
| Product | Capacity | Price | CA$ / TB | Tech | Prime |
|---|---|---|---|---|---|
| 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 TB | CA$994.99 | CA$49.75 | HDD · SATA | - |
| Seagate Exos X24 ST20000NM002H 20TB | 20 TB | CA$1,104.99 | CA$55.25 | HDD · SATA | - |
| WD 20TB Elements Desktop External Hard Drive - USB 3.0, Black | 20 TB | CA$1,202.34 | CA$60.12 | HDD · USB | - |
| 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 - 285 | 20 TB | CA$1,636.43 | CA$81.82 | HDD · SATA | - |
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: 2026-06-27 00:02:41 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.