High-capacity hard drives (20TB+), ranked by $/TB

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

Updated 4 hours ago

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High-capacity hard drives of 20TB and above are for serious archives, media servers and dense NAS builds. These are enterprise CMR drives, and while the sticker price is high, the price per terabyte is often the lowest of any storage. This table ranks 20TB+ drives on Amazon.ca by live price per terabyte, so you can find the most capacity per dollar at the top end. The 14-18TB band is sometimes better value; check our capacity pages too.

Best price per TB

CA$35.83

Products tracked

Prices updated

4 hours ago

TypeForm factorInterfaceMin capacityConditionBrand

Price per

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26 products

Product	Capacity	Price	CA$ / TB	Tech	Prime
Seagate Exos 28TB Internal Hard Drive HDD - 3.5 in CMR SATA 6Gb/s, 7200 RPM, 512MB Cache, 2.5M MTBF - ST28000NM000C (Renewed)Renewed	28 TB	CA$1,070.38	CA$38.23	HDD · SATA	-
Seagate IronWolf Pro 28TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST28000NTZ00)	28 TB	CA$1,099.99	CA$39.29	HDD · SATA	-
WD 28TB My Cloud Pro Series PR2100 Network Attached Storage - NAS - WDBBCL0280JBK-NESN	28 TB	CA$1,999.99	CA$71.43	HDD · SATA	-
WD 28TB My Book Duo Desktop RAID External Hard Drive HDD, USB 3.1, With Password Protection and Auto Backup Software - WDBFBE0280JBK-NESN	28 TB	CA$2,379.29	CA$84.97	HDD · USB	-
LaCie 2big RAID 28TB External Hard Drive Desktop HDD – USB-C, 7200 RPM Enterprise Class Drives, for Mac and PC Desktop, Rescue Services (STHJ28000800)	28 TB	CA$2,699.64	CA$96.42	HDD · USB	-
Western Digital 26TB Elements Desktop External Hard Drive, USB 3.0 External Hard Drive for Plug-and-Play Storage - WDBWLG0260HBK-NESN	26 TB	CA$1,439.99	CA$55.38	HDD · USB	Prime
Seagate Expansion 24TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP24000400)	24 TB	CA$859.99	CA$35.83	HDD · USB	-
Seagate IronWolf SATA III 3.5" Internal NAS Hard Drive - 12TB, 2-Pack	24 TB	CA$951.64	CA$39.65	HDD · SATA	-
Seagate Exos X24 24TB Enterprise Internal Hard Drive HDD - 6GB/s SATA 7200RPM 2.5M MTBF (ST24000NM002H)	24 TB	CA$1,324.99	CA$55.21	HDD · SATA	-
Western Digital 24TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 512 MB Cache, 3.5" - WD241PURP	24 TB	CA$1,358.51	CA$56.60	HDD · SATA	-
Seagate Exos 22TB SATA HDD 6Gb/s 7200RPM 3.5-inch Enterprise Hard Drive (ST22000NM000C) (Renewed)Renewed	22 TB	CA$926.38	CA$42.11	HDD · SATA	-
Western Digital 22TB WD Gold Enterprise Class SATA Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD221KRYZ	22 TB	CA$1,119.99	CA$50.91	HDD · SATA	-
Western Digital My Book 22TB USB 3.2 Gen 1 Desktop Hard Drive with Password Protection and Backup Software	22 TB	CA$1,153.82	CA$52.45	HDD · USB	-
Western Digital 22TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD221KFGX	22 TB	CA$1,159.99	CA$52.73	HDD · SATA	-
WD 22TB Elements Desktop External Hard Drive, USB 3.0 external hard drive for plug-and-play storage - WDBWLG0220HBK-NESN	22 TB	CA$1,224.99	CA$55.68	HDD · USB	Prime
WD 22TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Backup Software - WDBBGB0220HBK-NESN	22 TB	CA$1,264.99	CA$57.50	HDD · USB	Prime
Toshiba 22TB Enterprise Internal Hard Drive – MG Series 3.5" SATA HDD for Server, Storage, 24/7 Operation, Hyperscale, Cloud (MG10AFA22TE)	22 TB	CA$1,358.71	CA$61.76	HDD · SATA	-
SanDisk Professional 22TB G-Drive Enterprise-Class External Desktop Hard Drive - 7200RPM Ultrastar HDD Inside, USB-C (10Gbps), USB 3.2 Gen 2, Mac Ready - SDPHF1A-022T-NBAAD, Dark Grey	22 TB	CA$1,399.99	CA$63.64	HDD · USB	-
Western Digital 22TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 512 MB Cache, 3.5" - WD221PURP	22 TB	CA$1,596.26	CA$72.56	HDD · SATA	-
Seagate Expansion 20TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP20000400)	20 TB	CA$879.98	CA$44.00	HDD · USB	-
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 20TB Enterprise HDD - CMR 3.5 Inch Hyperscale SATA 6Gb/s, 7200 RPM, 512e and 4Kn FastFormat, Low Latency with Enhanced Caching - ST20000NM007D (Renewed)Renewed	20 TB	CA$1,334.61	CA$66.73	HDD · SATA	-
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	-
Western Digital 20TB WD Ultrastar DH HC560 7200RPM 512MB Ent,	20 TB	CA$3,897.02	CA$194.85	HDD · SATA	-

Frequently asked questions

What is the largest hard drive you can buy?

Mainstream enterprise drives reach around 28-30TB. The table shows the largest current options on Amazon.ca, ranked by price per terabyte.

Is a 20TB+ drive good value?

The price per terabyte is often the lowest available, but the 14-18TB band can be cheaper per TB. Compare both before buying.

Are 20TB+ drives CMR?

Yes, high-capacity drives at this size are enterprise CMR. They suit NAS and RAID. Always confirm the specific model.

Last updated: 2026-09-09 06:03:37 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.