Storage Comparison

Find your next drive. Know what you’re buying.

Compare current US Amazon offers by price, capacity and condition. Browse manufacturer specifications separately in the catalog.

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Live Listings

Product	Form Factor	Technology	Capacity	Condition	$/TB	Price	Warranty
WD Green 2 TB Desktop Hard Drive: 3.5 Inch, SATA III, 64 MB Cache (WD20EARX) (Old Model)	Internal 3.5"	HDD	2 TB 2000 GB	Used	$13.74 /TB	$27.49 as of Sep 12, 2026 10:56 UTC	—	View
HGST, a Western Digital Company Ultrastar 7K6000 6000GB 7200RPM SAS 4KN Ultra ISE 128MB Cache 3.5-Inch Internal Bare or OEM Drives 0F22790	Internal	SAS	6 TB 6000 GB	Used	$14.50 /TB	$87.00 as of Sep 12, 2026 11:02 UTC	—	View
Constellation ES ST32000444SS - Festplatte - 2 TB	Internal	SAS	2 TB 2000 GB	Used	$15.00 /TB	$30.00 as of Sep 12, 2026 10:52 UTC	—	View
Seagate Constellation 3TB ES.2 ST33000650SS 3.5" Enterprise SAS Hard Drive	3.5"	HDD	3 TB 3000 GB	Used	$16.00 /TB	$48.00 as of Sep 12, 2026 04:47 UTC	1 yr	View
Seagate Constellation ES.2 ST33000650SS 3 TB 3.5"	Internal	SAS	3 TB 3000 GB	Used	$16.33 /TB	$49.00 as of Sep 12, 2026 10:57 UTC	—	View
HGST Ultrastar HUS723030ALS640 3TB 7200RPM SAS 6Gbps 3.5-inch 64MB Cache Enterprise Internal Bare or OEM Hard Disk Drives (Renewed)	Internal	SAS	3 TB 3000 GB	Used	$16.63 /TB	$49.89 as of Sep 12, 2026 11:02 UTC	3 mo	View
DELL 91K8T 3TB 7.2K 3.5" NL SAS 6GBPS HDD	Internal	SAS	3 TB 3000 GB	Used	$17.00 /TB	$51.00 as of Sep 12, 2026 10:52 UTC	—	View
SEAGATE 3TB Constellation SAS 3.5" HD	Internal	SAS	3 TB 3000 GB	Used	$17.00 /TB	$51.00 as of Sep 12, 2026 10:52 UTC	—	View
Constellation ES.3 ST3000NM0043 - Festplatte - 3 TB	Internal	SAS	3 TB 3000 GB	Used	$17.00 /TB	$51.00 as of Sep 12, 2026 10:52 UTC	—	View
14X4H Dell – Compatible Enterprise OEM Drive in Dell Hot Swap Caddy – 3TB 7.2K 3.5 SAS LFF 6Gb/s Internal Drive for Dell Servers/Arrays	Internal	SAS	3 TB 3000 GB	Used	$17.00 /TB	$51.00 as of Sep 12, 2026 10:52 UTC	—	View
Seagate Constellation 3TB ES.2 ST33000650SS 3.5in Enterprise SAS Hard Drive (Renewed)	Internal	SAS	3 TB 3000 GB	Used	$17.00 /TB	$51.00 as of Sep 12, 2026 10:58 UTC	3 mo	View
3TB Seagate IBM ST3000NM0043 ES.3 SAS 7200RPM 128MB 6GB/s Internal 3.5 OEM Hard Drive (Renewed)	Internal	SAS	3 TB 3000 GB	Used	$17.00 /TB	$51.00 as of Sep 12, 2026 10:55 UTC	3 mo	View
SEAGATE ST4000NM0023 Constellation ES.3 4TB 7200 RPM 128MB cache SAS 6.0Gb/s 3.5 internal hard drive (Bare Drive) (Renewed)	—	HDD	4 TB 4000 GB	Used	$17.50 /TB	$69.99 as of Sep 12, 2026 11:44 UTC	3 mo	View
Dell 4TB 3.5 inches 7.2k NL SAS 6Gbs HDD (529FG) (Renewed)	Internal	SAS	4 TB 4000 GB	Used	$17.75 /TB	$71.00 as of Sep 12, 2026 10:53 UTC	3 mo	View
HGST Ultrastar HUS723030ALS640 3TB 7200RPM SAS 6Gbps 3.5" 64MB Cache Enterprise Internal Bare or OEM Hard Disk Drives	Internal	SAS	3 TB 3000 GB	Used	$18.21 /TB	$54.63 as of Sep 12, 2026 15:35 UTC	—	View
Seagate 3TB Enterprise Capacity SAS 6Gb/s 128MB Cache 3.5-Inch Internal Bare Drive (ST3000NM0023) (Renewed)	Internal	SAS	3 TB 3000 GB	Used	$18.33 /TB	$55.00 as of Sep 12, 2026 10:52 UTC	3 mo	View
Western Digital Re 4TB SAS Datacenter Capacity Hard Drive 3.5 inch 7200 RPM 32MB Cache \| WD4001FYYG \|	Internal	SAS	4 TB 4000 GB	Used	$18.50 /TB	$73.99 as of Sep 12, 2026 10:52 UTC	—	View
ST2000NM0001, Z1P, KRATSG, PN 9YZ268-002, FW 0002, Seagate 2TB SAS 3.5 Hard Drive (Certified Refurbished)	—	HDD	2 TB 2000 GB	Used	$18.50 /TB	$37.00 as of Sep 12, 2026 04:49 UTC	3 mo	View
Seagate ST33000650SS Constellation ES.2 SAS 6Gb/s 3-TB Hard Drive	Internal	SAS	3 TB 3000 GB	Used	$18.67 /TB	$56.00 as of Sep 12, 2026 10:52 UTC	—	View
3TB 7200RPM 128MB CACHE SAS/6GB/S NO ENCRYPTION (ST3000NM0023) -	Internal 3.5"	HDD	3 TB 3000 GB	Used	$18.67 /TB	$56.00 as of Sep 12, 2026 10:56 UTC	—	View
Seagate ST3000NM0023 Constellation Es.3 3tb Sas 6g	Internal	SAS	3 TB 3000 GB	Used	$18.67 /TB	$56.00 as of Sep 12, 2026 10:52 UTC	1 yr	View
TOSHIBA MG03ACA200 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Hard Drive Bare Drive	3.5"	HDD	2 TB 2000 GB	Used	$19.00 /TB	$38.00 as of Sep 12, 2026 11:46 UTC	—	View
SEAGATE ST3000NM0023 Constellation ES.3 3TB 7200 RPM 128MB cache SAS 6.0Gb/s 3.5 internal hard drive (Bare Drive) (Renewed)	—	HDD	3 TB 3000 GB	Used	$19.33 /TB	$58.00 as of Sep 12, 2026 04:49 UTC	—	View
SEAGATE TECHNOLOGY ST4000NM0023 HDD 4TB 7200RPM SAS 128MB 5 YEAR WAR 20-BOX	—	HDD	4 TB 4000 GB	Used	$19.50 /TB	$78.00 as of Sep 12, 2026 11:46 UTC	—	View
Dell 6TB 7.2K 6Gbps NL SAS 3.5 HDD (NWCCG) (Renewed)	Internal	SAS	6 TB 6000 GB	Used	$19.83 /TB	$119.00 as of Sep 12, 2026 10:53 UTC	3 mo	View
MDD MAXDIGITALDATA 4TB 7200RPM 128MB Cache SAS 12Gb/s 3.5inch Internal Enterprise Hard Drive (MD4TSAS12872E) - [NOT a SATA HDD] (Renewed)	Internal	SAS	4 TB 4000 GB	Used	$19.99 /TB	$79.95 as of Sep 12, 2026 10:52 UTC	5 yrs	View
Seagate Constellation ES 1 TB 7200 RPM SAS 2.0 6 GB/s 16 MB Cache 3.5-Inch Hard Drive - ST31000424SS	Internal	SAS	1 TB 1000 GB	Used	$20.00 /TB	$20.00 as of Sep 12, 2026 10:55 UTC	5 yrs	View
HGST Ultrastar 7K4000 4TB 3.5" 7200 RPM SAS 12Gb/s 64MB Cache Internal Enterprise Hard Drive - HUS724040ALS640	Internal	SAS	4 TB 4000 GB	Used	$20.00 /TB	$80.00 as of Sep 12, 2026 10:52 UTC	5 yrs	View
2.0TB Toshiba MG03SCA200 Enterprise 3.5" 7200RPM SAS 6Gb/s Hard Drive w/ 64MB Cache	3.5"	HDD	2 TB 2000 GB	Used	$20.00 /TB	$40.00 as of Sep 12, 2026 11:46 UTC	—	View
Seagate Enterprise Capacity ST6000NM0105 6TB 7200RPM SAS 12.0 GB/S 256MB 4Kn Enterprise Hard Drive	Internal	SAS	6 TB 6000 GB	Used	$20.00 /TB	$120.00 as of Sep 12, 2026 10:59 UTC	5 yrs	View
Dell \| 7RGK3 \| 2TB 7.2K RPM 6.0Gb/s SAS \| 3.5" LFF \| F238F Tray \| Enterprise Hard Disk Drive ST2000NM0001 (Renewed)	Internal	SAS	2 TB 2000 GB	Used	$20.00 /TB	$40.00 as of Sep 12, 2026 15:36 UTC	3 mo	View
SEAGATE TECHNOLOGY ST4000NM0023 HDD 4TB 7200RPM SAS 128MB (Renewed)	Internal	SAS	4 TB 4000 GB	Used	$20.00 /TB	$79.99 as of Sep 12, 2026 11:02 UTC	3 mo	View
SEAGATE ST4000NM0034 3.5 4TB 7200RPM SAS 12GB Hard Drive Seagate Technology ST4000NM0034 Seagate Hard Drives (Renewed)	Internal	SAS	4 TB 4000 GB	Used	$20.00 /TB	$79.99 as of Sep 12, 2026 10:56 UTC	5 yrs	View
MDD MAXDIGITALDATA 3TB 7200RPM 128MB Cache SAS 6Gb/s 3.5inch Internal Enterprise Hard Drive (MD3TSAS12872E) - [ NOT a SATA HDD ] (Renewed)	Internal	SAS	3 TB 3000 GB	Used	$20.00 /TB	$59.99 as of Sep 12, 2026 10:51 UTC	3 mo	View
Seagate Constellation Es.3 St4000nm0023 4 Tb 3.5 Internal Hard Drive	Internal 3.5"	HDD	4 TB 4000 GB	Used	$20.25 /TB	$81.00 as of Sep 12, 2026 10:58 UTC	—	View
ST33000650SS Seagate 3TB 7.2K 6Gb/s SAS 3.5in HD (Renewed)	Internal	SAS	3 TB 3000 GB	Used	$20.28 /TB	$60.85 as of Sep 12, 2026 10:52 UTC	3 mo	View
Dell 4TB HDD SAS 3,5 Inch 7,2K Near Line, 202V7 (Near Line) (Renewed)	Internal	SAS	4 TB 4000 GB	Used	$20.75 /TB	$83.00 as of Sep 12, 2026 10:56 UTC	3 mo	View
Seagate Constellation ES 2 TB 7200RPM 6 Gb/s SAS 64MB Cache 3.5 Inch Internal Bare Drive (ST2000NM0001)	Internal	SAS	2 TB 2000 GB	Used	$20.82 /TB	$41.64 as of Sep 12, 2026 10:56 UTC	5 yrs	View
Seagate Enterprise Capacity 3.5 HDD 6TB 7200RPM 12Gb/s SAS 128 MB Cache Internal Bare Drive ST6000NM0034	Internal	SAS	6 TB 6000 GB	Used	$20.83 /TB	$124.99 as of Sep 12, 2026 10:58 UTC	—	View
Dell 4TB HDD SAS 3,5 Inch 7,2K Near Line, 202V7 (Near Line)	Internal	SAS	4 TB 4000 GB	Used	$21.00 /TB	$84.00 as of Sep 12, 2026 10:54 UTC	—	View
Seagate Savvio 10K.6 ST900MM0006 900 GB 2.5" Internal Hard Drive	Internal	SAS	900 GB 900 GB	Used	$21.11 /TB	$19.00 as of Sep 12, 2026 10:55 UTC	—	View
Seagate Enterprise Capacity 3.5 HDD (Constellation ES) 4TB 7200RPM 6Gbps SAS 128 MB Cache Internal Bare Drive ST4000NM0023 (Renewed)	Internal	SAS	4 TB 4000 GB	Used	$21.25 /TB	$84.99 as of Sep 12, 2026 04:46 UTC	3 mo	View
WD2500AAKX Western Digital 250GB 7200RPM SATA ...	Internal 3.5"	HDD	250 GB 250 GB	Used	$21.64 /TB	$5.41 as of Sep 12, 2026 15:35 UTC	—	View
Seagate Enterprise Capacity 3.5 HDD\| ST6000NM0034 \| 6TB 7.2K RPM SAS 12Gb/s 128MB Cache 3.5' \| 512n \| Enterprise Hard Disk Drive for Hyperscale Applications (Renewed)	—	HDD	6 TB 6000 GB	Used	$21.67 /TB	$129.99 as of Sep 12, 2026 11:46 UTC	3 mo	View
Seagate ST4000NM0023 4TB 7.2K 6GBP/S 3.5 NL SAS Hard DE (Renewed)	Internal	SAS	4 TB 4000 GB	Used	$21.75 /TB	$86.99 as of Sep 12, 2026 10:52 UTC	3 mo	View
Dell 400-ATKR 8TB 7.2K SAS 3.5" 12Gb/s HDD KIT 14TH Generation Servers POWEREDGE R640 R740 R740XD R940 C6420 POWERVAULT MD1400 MD1420	Internal	SAS	8 TB 8000 GB	Used	$21.88 /TB	$175.00 as of Sep 12, 2026 11:00 UTC	—	View
Seagate Constellation ES 7200.1 2 TB 7200 RPM SAS 2.0 6 GB/s 16 MB Cache 3.5-Inch Hard Drive - ST32000444SS	3.5"	HDD	2 TB 2000 GB	Used	$22.00 /TB	$44.00 as of Sep 12, 2026 11:47 UTC	5 yrs	View
HGST HGST Ultrastar He6 6TB 3.5" SAS 7200 RPM Enterprise Internal Hard Drive - SAS 64 Mb Cache, 12Gb/s - HUS726060als640 / 0F18370 64 MB Cache 3.5-Inch Internal Bare or OEM Drives 0F18370	Internal	SAS	6 TB 6000 GB	Used	$22.00 /TB	$132.00 as of Sep 12, 2026 10:55 UTC	5 yrs	View
Toshiba 14TB SATA 512e 256MB Cache 7200RPM 3.5" SATA 6.0Gb/s Enterprise Hard Drive - MG07ACA14TE (Renewed) MG07ACA14TE specifications →	3.5-inch	HDD	14 TB 14000 GB	Used	$22.07 /TB	$309.00 as of Sep 12, 2026 11:44 UTC	3 mo	View
Dell 3TB 7.2K 3.5in NL SAS 6Gbs HDD (ST33000650SS) (Renewed)	Internal	SAS	3 TB 3000 GB	Used	$22.17 /TB	$66.50 as of Sep 12, 2026 10:52 UTC	3 mo	View

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What We Track

Disk Scout tracks internal & external hard drives, SATA/NVMe SSDs, RAM, memory cards, optical media, and LTO tape — pulled directly from Amazon's live listings and refreshed automatically throughout the day, so the table above reflects real, current prices rather than a stale snapshot.

Explore by Category

NAS Storage

Drives built for 24/7 NAS & RAID workloads

NVMe & SSD

High-performance drives for gaming & workstations

Price per TB

How to read the one number that matters most

Used & Enterprise

Refurbished datacenter drives at a fraction of new

Guides & Buying Advice

All guides

NAS comparison

IronWolf vs IronWolf Pro: When Is Pro Worth It?

Compare exact 4TB and 8TB models, workload ratings, warranty and the cost of upgrading the whole array.

Read guide

NAS comparison

WD Red Plus vs Red Pro: Choose for Your NAS

Compare the operating limits and offer terms that can justify the Pro premium.

Read guide

NAS buying guide

NAS Drive Noise and Power: What to Check Before Buying

Compare exact-model power figures, noise evidence and the annual electricity cost of a multi-drive array.

Read guide

Surveillance

Surveillance HDDs: DVR/NVR Compatibility and Recording Capacity

Choose a CCTV drive by exact model, camera bitrate, recording days, workload and enclosure compatibility.

Read guide

Buying comparison

WD Red Plus vs Seagate IronWolf: Compare the Exact Models

Choosing a home NAS drive? Compare Red Plus and IronWolf by model, RPM, cache, capacity and published NAS limits before checking Amazon offers.

Read guide

Buying comparison

Seagate Exos vs WD Ultrastar: A SATA Buying Comparison

Compare Exos X18 and Ultrastar DC HC550 models for bulk storage. Check SATA versus SAS, sector format, model suffixes and renewed-offer terms.

Read guide

Frequently Asked Questions

Is Disk Scout affiliated with Amazon?

No. Disk Scout is an independent, third-party price tracker. We are not owned by, operated by, or affiliated with Amazon.com, Inc. or its affiliates.

How does Disk Scout make money?

As an Amazon Associate, Disk Scout earns from qualifying purchases when you click through and buy on Amazon. This never affects rankings — every table is sorted purely by price per TB, with no paid placement.

Why do prices differ between regions?

Amazon sets independent pricing, tax, and currency for each marketplace, so the same drive can cost meaningfully different amounts by region. We show each region separately rather than converting to one currency, since live exchange rates would make the comparison misleading.

How often are prices updated?

Every 4 hours, automatically. See our Methodology page for details on how we collect and calculate prices.

What does "price per TB" mean?

Total price divided by usable capacity, so drives of very different sizes can be compared fairly. Full explanation in our price-per-TB guide.

Can I save listings to compare later?

Yes — click the heart icon on any listing to save it locally in your browser (no account needed), then filter to "Saved" to compare your shortlist.