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20 TB hard drive prices

Every 20 TB internal hard drive listing we found on eBay, ranked by price per terabyte including shipping: SATA and SAS, new, refurbished and used. Updated Oct 11, 2026 12:41 UTC.

Cheapest used SATA, per TB$21.00

Cheapest new SATA, per TB$24.01

Cheapest SAS, per TB$25.45

$/TB	Price	Shipping	Capacity	Size	Condition	Listing
$21.00	$410.00	+ ship	20 TB	3.5″	Used	Seagate Exos X20 (7200RPM, 3.5", SATA III) 20TB Internal Hard Drive · 2 available
$24.01	$470.10	+ ship	20 TB	3.5″	New	Western Digital WD WD200EDGZ 20TB 3.5" SATA 6Gbps Hard Drive
$26.36	$527.29	$7.29	20 TB	3.5″	Used	Seagate Exos X20 ST20000NM007D 20TB 7200 RPM 256MB Cache 3.5" Internal Hard Driv
$26.75	$524.99	+ ship	20 TB		Used	Synology HAT5310-20T 20TB Enterprise NAS HDD SATA 7200RPM SMART PASS Tested
$27.00	$1,069.95	+ ship	20 TB ×2	3.5″	New	(2) Seagate Exos X20 20TB Enterprise HDD ST20000NM007D SATA 3.5” BRAND NEW
$28.45	$569.00	free	20 TB	3.5″	Used	Western Digital 20TB 7.2K SATA 6Gb/s 3.5" Internal Hard Drive WD200EDGZ
$28.48	$569.69	$11.20	20 TB	3.5″	Used	Seagate Exos X20 ST20000NM007D 20TB 7200 RPM 256MB Cache 3.5" Internal Hard Driv
$28.75	$575.00	free	20 TB		Used	Seagate ExosEnterpriseX16, NM Series, 20 TB, 139 hrs , ST20000NM007D
$29.30	$575.97	+ ship	20 TB	3.5″	Used	Seagate Exos X20 ST20000NM007D 20TB 7200 RPM 256MB Cache 3.5" Internal Hard Driv
$29.45	$589.00	free	20 TB	3.5″	Used	Seagate Exos X20 20TB 3.5" SATA HDD Hard Drive ST20000NM007D (100% Health)
$29.90	$597.99	free	20 TB	3.5″	Refurb	Seagate Exos ST20000NM003C 20TB CMR 7200RPM SATA6Gb/s 3.5" Enterprise Hard Drive
$29.95	$599.00	free	20 TB	3.5″	Used	Seagate Exos X20 20TB 7.2K SATA 6Gb/s 256MB 3.5in Internal HDD ST20000NM007D
$29.95	$599.00	free	20 TB	3.5″	Used	Seagate Exos 20TB 3.5" SATA Hard Drive ST20000NM002C (100% Health)
$30.06	$601.19	$11.20	20 TB	3.5″	Used	Seagate Exos X20 ST20000NM007D 20TB 7200 RPM 256MB Cache 3.5" Internal Hard Driv
$31.45	$629.00	free	20 TB	3.5″	Used	SEAGATE ST20000NM007D 20TB SATA 6GBPS 7.2K 3.5IN HDD
$31.45	$629.00	free	20 TB		Used	Seagate ST20000NM007D Exos X20 20TB 7200RPM SATA 6Gbps 256MB Cache (512e 4Kn) 3.
$31.45	$629.00	free	20 TB	3.5″	Used	MG10ACA20TEY TOSHIBA 20TB 7.2K RPM SATA 6Gb/s 3.5'' 512e HDD
$31.95	$639.00	free	20 TB	3.5″	Used	ST20000NM007D SEAGATE EXOS X20 20TB 7200RPM SATA 6Gb/s 256MB 3.5in Internal HDD
$32.50	$649.99	free	20 TB	3.5″	Used	Western Digital WD Gold 20TB HDD Hard DISK Drive SATA 3.5" 512MB 7200 RPM
$32.50	$650.00	free	20 TB	3.5″	Used	Seagate Exos X20 20TB 7.2K SATA 6Gb/s 256MB 3.5in Internal HDD ST20000NM007D
$32.80	$655.97	$25.99	20 TB	3.5″	Open box	Toshiba MG10ACA20TE 20TB SATAIII 7200RPM 3.5" Enterprise Grade HDD
$33.00	$649.99	+ ship	20 TB		New	Seagate Exos X20 ST20000NM000D 3DJ113-003 20TB 7200 RPM 256MB Cache SATA 6.0Gb/s
$33.00	$659.99	free	20 TB	3.5″	Refurb	Seagate Exos ST20000NM004C 20TB CMR 7200RPM SATA6Gb/s 3.5" Enterprise Hard Drive
$34.25	$675.00	+ ship	20 TB	3.5″	Open box	Seagate IronWolf Pro 20TB 7200RPM SATA 6Gb/s 3.5" NAS Hard Drive - ST20000NE000
$35.45	$699.00	+ ship	20 TB		New	Seagate Exos X24 20TB 7200RPM SATA III Internal Hard Drive HDD New Retail Sealed
$35.45	$709.00	free	20 TB	3.5″	Open box	ST20000NM004E Seagate Exos X22 20TB 7200RPM SATA 6Gb/s 3.5" Enterprise HDD NEW
$35.50	$700.00	+ ship	20 TB		New	Seagate Ironwolf Pro 20tb st2000ne000 new HDD
$36.60	$732.00	free	20 TB		Open box	ST20000NT001 Seagate Ironwolf Pro 20TB 3.5 256M Enterprise NAS SATA Hard Drive
$37.15	$743.00	free	20 TB	3.5″	Used	ST20000NM007D Seagate Exos X20 20TB SATA 7.2K 6Gbps 256MB 3.5" Hard Drive
$37.20	$744.00	free	20 TB	3.5″	Used	ST20000NM007D Seagate Exos X20 20TB 7.2K SATA 6Gbps 256MB 3.5" Hard Drive
$37.30	$746.00	free	20 TB	3.5″	Open box	Seagate ST20000NM002C Exos 20TB 256MB Internal CMR 7.2K 6Gb 3.5" SATA Hard Drive
$37.45	$749.00	free	20 TB	3.5″	Open box	Seagate ST20000NM001J Exos X20z 20TB 3.5" 7200RPM SATA 6Gbp 256MB SMR Hard Drive
$37.50	$749.99	free	20 TB	3.5″	Used	Dell 20TB SATA 6Gb/s 3.5"Hard Drive - FGN19 / WDVF4 Compatible with PowerEdge
$37.50	$750.00	free	20 TB	3.5″	Open box	Western Digital 20TB 7.2K SATA 6Gb/s 3.5" Internal Hard Drive WD200EDGZ NEW
$37.95	$759.00	free	20 TB	3.5″	Open box	Seagate Ironwolf Pro 20TB 7200RPM SATA 6Gb/s 3.5" NAS HDD ST20000NT001 New
$38.90	$768.00	+ ship	20 TB	3.5″	New	Seagate IronWolf Pro 20TB 3.5" SATA Internal HDD ST20000NT001 - NEW
$39.16	$783.21	free	20 TB	3.5″	Used	Used Seagate ST20000NM007D Exos X20 20TB SATA 7200RPM 256MB Cache 3.5" HDD
$39.25	$785.00	free	20 TB		Used	20TB HDD Seagate Exos x20 st20000nm007d
$39.95	$799.00	free	20 TB	3.5″	Open box	Seagate Exos X20 20TB 7.2K SATA 6Gb/s 256MB 3.5in Internal HDD ST20000NM007D
$39.95	$799.00	free	20 TB	3.5″	Open box	MG10ACA20TE TOSHIBA 20TB 7.2K RPM SATA 6Gb/s 3.5in 512e HDD New
$40.50	$800.00	+ ship	20 TB	3.5″	Used	Synology HAT5310-20T - 20 TB 3.5" SATA 7200 RPM Enterprise Grade HDD for NAS
$40.50	$799.97	+ ship	20 TB	3.5″	New	Seagate Exos X20 20TB Enterprise HDD 7200 RPM SATA 6Gb/s 3.5" - ST20000NM007D
$40.55	$811.00	$12.00	20 TB	3.5″	New	Seagate 20TB 3.5" 4Kn SATA Desktop PC Server Hard Drive ST20000NM007D
$41.45	$829.00	free	20 TB	3.5″	Open box	ST20000NM007D SEAGATE EXOS X20 20TB 7200RPM SATA 6Gb/s 256MB 3.5in Internal HDD
$41.45	$829.00	free	20 TB		Open box	WD203KRYZ WD Gold 20TB Enterprise Class SATA HDD Internal Hard Drive HDD ***NOB
$42.50	$850.00	free	20 TB	3.5″	Open box	WUH722020CLE6L4 WD Ultrastar DC HC555 20TB 7.2K SATA 6Gb/s 512e 3.5in HDD New
$42.50	$850.00	free	20 TB	3.5″	Open box	WUH722020BLE600 WD Ultrastar DC HC560 20TB 7200RPM SATA 6Gb/s 3.5" HDD NEW
$43.65	$872.95	free	20 TB	3.5″	New	New Toshiba HDWG62AXSTA, 20TB SATA 6Gb/s, 7200RPM, 3.5", Internal Hard Drive
$43.84	$876.84	free	20 TB	3.5″	New	TOSHIBA N300 Pro HDWG82AXZSTB 20TB 7200 RPM SATA 6.0Gb/s 3.5" Hard Drives BULK
$43.98	$879.67	$5.68	20 TB	3.5″	New	Western Digital Gold 20TB 3.5" SATA 7200rpm Internal Hard Disk Drive WD203KRYZ
$44.50	$890.00	free	20 TB	3.5″	Open box	WD Ultrastar DC HC560 20TB 7200RPM SATA 6Gb/s 512e 3.5" HDD WUH722020BLE6L4 New
$44.90	$897.99	free	20 TB	3.5″	New	Synology 20TB HAT3320 Plus Series SATA III 3.5" Internal NAS HDD ( HAT3320-20T)
$44.95	$899.00	free	20 TB		Used	WD200EDGZ-11B9PA0, WESTERN DIGITAL SATA 20TB, IU HA570, 2TJ3, JUN 2025
$44.95	$899.00	free	20 TB		Used	WD200EDGZ-11CMXA0, WESTERN DIGITAL SATA 20TB, IU HA570, PPG4, MAR 2025
$45.00	$899.99	free	20 TB	3.5″	New	Toshiba MG10 20TB SATA 6Gb/s 7200RPM 512e 3.5" Enterprise HDD
$47.50	$950.00	free	20 TB	3.5″	Open box	Seagate Exos X20 20TB 7.2K SATA 6Gb/s 3.5in 256MB Internal HDD ST20000NM007D New
$47.50	$950.00	free	20 TB	3.5″	Open box	Seagate Exos X24 20TB 7200 RPM SATA 6Gb/s 3.5" Internal HDD ST20000NM002H New
$47.50	$950.00	free	20 TB		Open box	Seagate BarraCuda 20TB 7.2K RPM SATA 6Gb/s 3.5‘’ Internal HDD ST20000DM001 NEW
$47.50	$950.00	free	20 TB	3.5″	Open box	Seagate SkyHawk AI 20TB 7.2K SATA 6Gb/s 3.5'' Internal HDD ST20000VE003 New
$47.50	$949.98	free	20 TB	3.5″	Open box	Dell Exos X24 20TB SATA 6Gb/s 3.5" Internal Hard Drive (ST20000NM002H)
$48.21	$964.25	free	20 TB	3.5″	New	New Seagate ST20000NE000 IronWolf Pro 20TB SATA 7200RPM 3.5" HDD NAS Hard Drive
$48.23	$964.52	free	20 TB	3.5″	New	New Seagate ST20000NM004E Exos X22 20TB SATA 7200RPM 3.5" Enterprise HDD
$48.23	$964.52	free	20 TB	3.5″	New	New Seagate ST20000NM007D 256MB Cache 3.5" HDD Exos X20 20TB SATA 7200RPM
$48.46	$969.25	free	20 TB	3.5″	New	New Seagate ST20000NT001 IronWolf Pro 20TB SATA 7200RPM 3.5" HDD Hard Drive
$48.91	$978.14	free	20 TB	3.5″	New	Synology HAT3320-20T 20TB 3.5" SATA Hard Drive CMR
$49.75	$995.00	free	20 TB		New	WD Gold 20TB WD202KRYZ - SATA 6G/s, 7200rpm, 512MB cache (New, sealed)
$49.99	$999.77	free	20 TB	3.5″	New	WD Gold 20TB Hard Drive - 3.5" Internal - SATA - Enterprise Class HDD
$50.00	$1,000.00	free	20 TB		New	ST20000NM004E Seagate Exos X22 20TB 7200RPM SATA 6Gb/s 3.5 Enterprise HDD
$51.85	$1,026.92	+ ship	20 TB	3.5″	New	SYNOLOGY HAT3320-20T 20TB Plus Series SATA 3.5" NAS Hard Drive
$52.45	$1,049.00	free	20 TB	3.5″	New	ST20000VE003 Seagate SkyHawk AI 20TB 7200RPM SATA 6Gbps 512MB 3.5” Internal HDD
$52.50	$1,049.99	free	20 TB		New	HAT3320-20T Synology Plus Series 20TB SATA 6Gbps 7.2K RPM Hard Disk Drive
$52.75	$1,055.04	free	20 TB	3.5″	New	Western Digital WD202KFGX 20TB Hard Drive 3.5" SATA CMR
$54.34	$1,086.79	free	20 TB	3.5″	New	Synology HAT3320-20T 20TB 7200 RPM 1GB Cache SATA 3.5" Synology HAT3320 20TB
$54.42	$1,078.32	+ ship	20 TB	3.5″	New	Western Digital WD202KFGX 20TB WD Red Pro NAS 3.5" SATA 7200RPM 512MB HDD CMR
$54.42	$1,078.32	+ ship	20 TB	3.5″	New	Western Digital WD202KFGX Red Pro 20TB 7200 RPM SATA 3.5" NAS Hard Drive
$55.00	$1,100.00	free	20 TB		New	WDVF4 DELL 20TB 7.2K SATA 3.5 6Gbps HDD 512e 14G 15G 16G KIT
$55.00	$1,100.00	free	20 TB		New	161-BBWB DELL 20TB 7.2K SATA 3.5 6Gbps HDD 512e 14G 15G 16G KIT
$55.00	$1,100.00	free	20 TB		New	X2XR3 DELL 20TB 7.2K SATA 3.5 6Gbps HDD 512e 14G 15G 16G KIT
$55.00	$1,100.00	free	20 TB		New	161-BBSZ DELL 20TB 7.2K SATA 3.5 6Gbps HDD 512e 14G 15G 16G KIT
$55.00	$1,100.00	free	20 TB		New	161-BBWN DELL 20TB 7.2K SATA 3.5 6Gbps HDD 512e 14G 15G 16G KIT
$55.00	$1,100.00	free	20 TB		New	161-BBTE DELL 20TB 7.2K SATA 3.5 6Gbps HDD 512e 14G 15G 16G KIT
$55.00	$1,100.00	free	20 TB		New	161-BBVZ DELL 20TB 7.2K SATA 3.5 6Gbps HDD 512e 14G 15G 16G KIT
$55.00	$1,100.00	free	20 TB		New	161-BBTJ DELL 20TB 7.2K SATA 3.5 6Gbps HDD 512e 14G 15G 16G KIT
$55.00	$1,100.00	free	20 TB		New	21YT3 DELL 20TB 7.2K SATA 3.5 6Gbps HDD 512e 14G 15G 16G KIT
$55.00	$1,100.00	free	20 TB		New	161-BBWI DELL 20TB 7.2K SATA 3.5 6Gbps HDD 512e 14G 15G 16G KIT
$55.00	$1,100.00	free	20 TB		New	161-BBYF DELL 20TB 7.2K SATA 3.5 6Gbps HDD 512e 14G 15G 16G KIT
$55.00	$1,100.00	free	20 TB		New	161-BBWH DELL 20TB 7.2K SATA 3.5 6Gbps HDD 512e 14G 15G 16G KIT
$59.90	$1,198.00	free	20 TB	3.5″	Open box	New Other ST20000VE003 Seagate SkyHawk AI 20TB 6Gbps SATA 512MB 7.2K 3.5" HDD
$60.60	$1,212.00	free	20 TB		Open box	Western Digital 20TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6
$64.80	$1,295.99	free	20 TB	3.5″	Used	Seagate Exos X20 ST20000NM007D 20TB 512E SATA 6Gb/s 3.5" Enterprise Hard Drive
$66.25	$1,324.95	free	20 TB	3.5″	Open box	0 HR Western Digital 20TB 3.5" SATA 6GB/s 7200RPM 512MB Cache - WD200EDGZ

Showing 91 of 91 listings

Buying tips

Helium-filled enterprise drives dominate this range: Seagate Exos X, WD Ultrastar DC HC5xx and Toshiba MG series, often sold used or refurbished with low hours. Many enterprise SATA drives (12 TB and up, and most white-label shucked drives) use the power-disable feature (PWDIS, SATA pin 3): in some desktop PSUs and USB docks they do not spin up. A Molex-to-SATA adapter or a piece of Kapton tape over pin 3 fixes it.

How this table works

We collect Buy It Now listings from eBay US several times a day and divide the total price, including shipping, by the drive capacity. Multi-drive lots are counted by their total capacity. Listings for parts, drives with an operating system installed, accessories and suspiciously cheap offers are removed. Host-managed SMR drives and drives pulled from storage arrays (EMC, NetApp, 3PAR) are excluded from the SATA table because they do not work in ordinary computers.