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

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

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Updated 5 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.com 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
$21.63
Products tracked
50
Prices updated
5 hours ago
Price per
50 products
ProductCapacityPrice$ / TBTechPrime
Seagate IronWolf Pro SATA III 3.5" Internal NAS Hard Drive, 7200 RPM - 20TB, 2-PackUsed40 TB$1,289.00$32.23HDD · SATA-
Seagate IronWolf Pro SATA III 3.5" Internal NAS Hard Drive, 7200 RPM - 20TB, 2-Pack40 TB$1,699.98$42.50HDD · SATA-
Glyph Blackbox Pro Raid Desktop Drive with Thunderbolt 3 Interface, 7200 RPM, and 550 MBPS Transfer Speed (40TB, Black)40 TB$1,999.99$50.00HDD · Thunderbolt-
Seagate Skyhawk AI 32TB Video Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 512MB Cache for DVR NVR Security Camera System with in-House Rescue Services (ST32000VE000)32 TB$1,159.99$36.25HDD · SATA-
Seagate Exos M 30TB Enterprise Internal Hard Drive HDD - 3.5in 6GB/s SATA 7200RPM 2.5M MTBF (ST30000NM004K)30 TB$1,199.99$40.00HDD · 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 (ST28000NT000)28 TB$1,019.99$36.43HDD · SATA-
Seagate Exos M 28TB Enterprise Internal Hard Drive HDD - 3.5in 6GB/s SATA 7200RPM 2.5M MTBF (ST28000NM003K)28 TB$1,119.99$40.00HDD · SATA-
G-Technology 28TB G-RAID with Thunderbolt 3, USB-C (USB 3.1 Gen 2), and HDMI, Removable Dual Drive Storage System, Silver - 0G10414-1Used28 TB$1,184.87$42.32HDD · Thunderbolt-
WD 28TB My Book Duo Desktop RAID External Hard Drive HDD, USB 3.1, With Password Protection and Auto Backup Software - WDBFBE0280JBK-NESN28 TB$1,334.99$47.68HDD · USBPrime
Seagate IRONWOLF PRO 28TB 2PK28 TB$2,039.98$72.86HDD · SATA-
WD Ultrastar DC HC590 0F65672 - 26 TB26 TB$1,072.99$41.27HDD · SATA-
Seagate Barracuda 24TB Internal Hard Drive, 7200 U/Min, 512MB Cache, SATA 6Gb/s, 3.5" (ST24000DM001)Used24 TB$519.00$21.63HDD · SATA-
MDD (MDD24TSATA51272E) 24TB 7200RPM 512MB Cache SATA 6.0Gb/s 3.5inch Internal Enterprise Hard Drive - 5 Years Warranty (Renewed)Renewed24 TB$559.99$23.33HDD · SATA-
Seagate Exos ST24000NM000C 24TB 7.2K RPM SATA 6Gb/s 512e 3.5in Enterprise Hard Drive (Renewed)Renewed24 TB$593.99$24.75HDD · SATA-
Seagate Exos X24 24TB Enterprise Hard Drive HDD SATA 6Gb/s 512MB Cache 7200 RPM 512e CMR Helium Sealed 3.5in Hard Drive ST24000NM000HUsed24 TB$650.00$27.08HDD · SATA-
Seagate Barracuda 24TB Internal Hard Drive, 7200 U/Min, 512MB Cache, SATA 6Gb/s, 3.5" (ST24000DM001)24 TB$689.95$28.75HDD · SATA-
Seagate Skyhawk AI 24TB Video Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 512MB Cache for DVR NVR Security Camera System with in-House Rescue Services (ST24000VE002)24 TB$859.99$35.83HDD · SATA-
Seagate IronWolf Pro 24TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST24000NT002)24 TB$859.99$35.83HDD · SATA-
LaCie d2 Professional 24TB External Hard Drive Desktop HDD – USB-C USB 3.1 Gen 2, 7200 RPM Enterprise Class Drives, for Mac and PC Desktop, 1mo Adobe CC All Apps Plan, Rescue Services (STHA24000800)24 TB$867.32$36.14HDD · USB-
Seagate Exos X24 24TB Enterprise Internal Hard Drive HDD - 6GB/s SATA 7200RPM 2.5M MTBF (ST24000NM002H)24 TB$959.99$40.00HDD · SATA-
Western Digital 24TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" -WD241KFGX24 TB$960.87$40.04HDD · SATAPrime
Western Digital WD 24TB Elements Desktop External Hard Drive for Plug-and-Play Storage, USB 3.2 Gen1 - WDBWLG0240HBK-NESN24 TB$979.99$40.83HDD · USB-
Seagate Exos X24 24TB Enterprise Hard Drive HDD SATA 6Gb/s 512MB Cache 7200 RPM 512e CMR Helium Sealed 3.5in Hard Drive ST24000NM000H24 TB$999.00$41.63HDD · SATA-
Western Digital Ultrastar HC590 WUH722624ALE6L4 0F65684 24TB 7.2K RPM SATA 6Gb/s 512e 3.5in Enterprise Hard Drive24 TB$1,099.99$45.83HDD · SATA-
Western Digital 24TB WD Gold Enterprise Class SATA Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD241KRYZ24 TB$1,199.99$50.00HDD · SATA-
Seagate Exos 22TB SATA HDD 6Gb/s 7200RPM 3.5-inch Enterprise Hard Drive (ST22000NM000C) (Renewed)Renewed22 TB$549.00$24.95HDD · SATA-
OSENTRiX GX100 22TB USB 3.2 Gen 2 USB-C External Hard Drive with USB Hub for Windows or MacOS Desktop PC/Laptop - 2 Year Warranty22 TB$549.99$25.00HDD · USB-
MDD (MDD22TSATA25672DVR) 22TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)Renewed22 TB$559.99$25.45HDD · SATA-
MDD MAXDIGITALDATA MDD 22TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Enterprise Hard Drive - 5 Years Warranty (Renewed)Renewed22 TB$559.99$25.45HDD · SATA-
MDD (MDD22TS25672NAS) 22TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal NAS Hard Drive - 5 Years Warranty (Renewed)Renewed22 TB$559.99$25.45HDD · SATA-
Seagate Exos X22 22TB SATA 6Gb/s 7200RPM 3.5" Enterprise Hard Drive - ST22000NM001E (Renewed)Renewed22 TB$559.99$25.45HDD · SATA-
Seagate (Recertified) Exos X22 22TB Internal Hard Drive - 3.5 Inch Hyperscale SATA 6Gb/s HDD, 7200 RPM, 2.5M MTBF, 512e and 4Kn FastFormat, Low Latency with Enhanced Caching (ST22000NM001E)Renewed22 TB$589.99$26.82HDD · SATA-
Seagate Expansion 22TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP22000400)22 TB$629.99$28.64HDD · USB-
Western Digital 22TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 512 MB Cache, 3.5" - WD221PURP22 TB$814.95$37.04HDD · SATA-
WD Ultrastar DC HC570 0F48155 22 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Conventional Magnetic Recording (CMR) Method22 TB$829.99$37.73HDD · SATA-
Western Digital 22TB Elements Desktop External Hard Drive, USB 3.0 external hard drive for plug-and-play storage - WDBWLG0220HBK-NESN22 TB$898.00$40.82HDD · USB-
Western Digital WD Ultrastar HC570 WUH722222ALE6L4 22TB 7200RPM 3.5'' Desktop HDD 0F4815522 TB$899.99$40.91HDD · SATA-
WD 22TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Backup Software - WDBBGB0220HBK-NESN22 TB$929.99$42.27HDD · USBPrime
MDD MAXDIGITALDATA 20TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5'' Internal Hard Drive (for NAS, Network Storage) - 5 Years Warranty20 TB$499.99$25.00HDD · SATA-
Seagate Expansion 20TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP20000400)20 TB$583.51$29.18HDD · USBPrime
WD 20TB Elements Desktop External Hard Drive, USB 3.0 drive for plug-and-play storage - WDBWLG0200HBK-NESN20 TB$599.99$30.00HDD · USBPrime
LaCie d2 Professional 20TB External Hard Drive Desktop HDD – USB-C USB 3.1 Gen 2, 7200 RPM Enterprise Class Drives, for Mac and PC Desktop, 1mo Adobe CC All Apps Plan, Rescue Services (STHA20000800)20 TB$682.32$34.12HDD · USB-
Western Digital 20TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD202KFGX20 TB$699.99$35.00HDD · SATA-
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 TB$719.99$36.00HDD · SATA-
Seagate IronWolf Pro, 20 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6 Gb/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST20000NT001)20 TB$719.99$36.00HDD · SATA-
Toshiba N300 20TB NAS 3.5-Inch Internal Hard Drive - CMR SATA 6 GB/s 7200 RPM 512 MB Cache - HDWG62AXZSTA20 TB$749.95$37.50HDD · SATA-
Seagate Technology ST20000NM002H 20TB Exos X24 HDD 3.5 SATA 7200 ISE Bare Hard Drive20 TB$799.99$40.00HDD · SATA-
Toshiba 20TB MG10ACA20TE SATA 600GB 20in1 HDD20 TB$829.95$41.50HDD · SATA-
Western Digital 20TB WD Ultrastar DH HC560 7200RPM 512MB Ent,20 TB$895.99$44.80HDD · SATA-
Glyph BlackBox Pro External Hard Drive 7200 RPM, USB-C (3.1,Gen2) (20TB)20 TB$899.99$45.00HDD · USB-

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.com, 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: 2026-06-26 18:01:42 UTC. As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date indicated on Amazon.com 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.