Storage Comparison

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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
MDD MAXDIGITALDATA MaxDigitalData 6TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5'' Helium Platform NAS Hard Drive - w/3 Year Warranty (Renewed)	Internal 3.5"	HDD	6 TB 6000 GB	Used	$25.00 /TB	$149.99 as of Sep 12, 2026 10:58 UTC	3 mo	View
HGST, a Western Digital Company Ultrastar 7K6000 6000GB 7200RPM SATA 512E Ultra ISE 128MB Cache 3.5-Inch Internal Bare or OEM Drives 0F23001	Internal 3.5"	HDD	6 TB 6000 GB	New	$26.50 /TB	$159.00 as of Sep 12, 2026 10:58 UTC	5 yrs	View
HGST Ultrastar He8 Helium 6TB 3.5-Inch 7200RPM SATA ULTRA 512e SE 128MB Cache Internal Bare or OEM Hard Drive - HUH728060ALE604 / 0F23669	Internal 3.5"	HDD	6 TB 6000 GB	New	$27.17 /TB	$163.00 as of Sep 12, 2026 10:58 UTC	5 yrs	View
Seagate Exos 7E8 6TB 512e SATA 256MB Cache 3.5-Inch Enterprise Hard Drive (ST6000NM0115) (Renewed)	3.5"	HDD	6 TB 6000 GB	Used	$27.50 /TB	$165.00 as of Sep 12, 2026 11:46 UTC	3 mo	View
Seagate ST6000NM0024 6TB 7.2K SATA 3.5" HDD	3.5"	HDD	6 TB 6000 GB	New	$28.16 /TB	$168.95 as of Sep 12, 2026 04:49 UTC	—	View
Western Digital 2021 WD Se Datacenter Capacity HDD 6TB 7200 RPM SATA 6Gb/s 128MB-Cache 3.5-Inch Enterprise Hard Disk Drive - WD6001F9YZ (Renewed)	Internal 3.5"	HDD	6 TB 6000 GB	Used	$29.33 /TB	$176.00 as of Sep 12, 2026 10:58 UTC	3 mo	View
HGST Ultrastar 6TB 3.5inch 128MB Cache 7200RPM SATA 6.0Gb/s Internal Enterprise Hard Drive - HUS726060ALE614 (For Desktop PC/Mac, NAS, CCTV DVR, Surveillance System, RAID, Server) (Renewed)	Internal 3.5"	HDD	6 TB 6000 GB	Used	$29.92 /TB	$179.50 as of Sep 12, 2026 10:58 UTC	3 mo	View
WL 6TB 5700RPM 64MB Cache 5700RPM SATA III (6.0Gb/s) 3.5" Internal Hard Drive (Desktop PC, CCTV DVR, NAS) - w/1 Year Warranty	Internal 3.5"	HDD	6 TB 6000 GB	New	$30.00 /TB	$179.99 as of Sep 12, 2026 10:58 UTC	1 yr	View
HGST Ultrastar 7K6000 HUS726060ALE610 0F23001 6TB 7200 RPM SATA 3.5" 512E ISE 128MB Cache Enterprise Hard Drive	Internal 3.5"	HDD	6 TB 6000 GB	New	$30.00 /TB	$179.99 as of Sep 12, 2026 10:58 UTC	—	View
HGST HUS726060ALA640 Ultrastar He6 (Helium Platform) 6TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5inch Internal Enterprise Hard Drive - 3 Years Warranty (Renewed)	Internal 3.5"	HDD	6 TB 6000 GB	Used	$30.00 /TB	$179.99 as of Sep 12, 2026 10:58 UTC	3 yrs	View
Toshiba 6 Tb 3.5 Internal Hard Drive - Sata - 7200rpm (Renewed)	—	HDD	6 TB 6000 GB	Used	$30.00 /TB	$179.99 as of Sep 12, 2026 11:46 UTC	3 mo	View
Toshiba MG04ACA600E 6TB 3.5" SATA 6GBPS Enterprise HDD	3.5"	HDD	6 TB 6000 GB	New	$30.00 /TB	$179.99 as of Sep 12, 2026 11:46 UTC	—	View
Seagate SkyHawk 6TB Surveillance Internal Hard Drive HDD – 3.5 Inch SATA 6GB/s 256MB Cache for DVR NVR Security Camera System with Drive Health Management – Frustration Free Packaging (ST6000VX001) ST6000VX001 specifications →	Internal 3.5"	HDD	6 TB 6000 GB	Used	$31.67 /TB	$189.99 as of Sep 12, 2026 10:56 UTC	3 yrs	View
MaxDigitalData 6TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for NAS Network Storage (MD6000GSA12872NAS) - 3 Years Warranty (Renewed)	Internal 3.5"	HDD	6 TB 6000 GB	Used	$31.67 /TB	$189.99 as of Sep 12, 2026 10:58 UTC	3 yrs	View
MDD (MDD6TSATA6472DVR) 6TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5-inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)	Internal 3.5"	HDD	6 TB 6000 GB	Used	$31.67 /TB	$189.99 as of Sep 12, 2026 10:58 UTC	3 yrs	View
Seagate ST6000NM0024 6TB ENT CAP 3.5 HDD SATA 7200 RPM 128MB 3.5IN NO ENCRYPTION	—	HDD	6 TB 6000 GB	Used	$32.50 /TB	$195.00 as of Sep 12, 2026 11:46 UTC	—	View
Western Digital 6TB Ultrastar DC HC310 SATA HDD - 7200 RPM Class, SATA 6 Gb/s, 256MB Cache, 3.5inch - HUS726T6TALE6L4 (Renewed)	3.5"	HDD	6 TB 6000 GB	Used	$32.65 /TB	$195.89 as of Sep 12, 2026 04:49 UTC	3 mo	View
MDD MAXDIGITALDATA 6TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveillance (MD6000GSA12872DVR) - 3 Years Warranty (Renewed)	Internal 3.5"	HDD	6 TB 6000 GB	Used	$33.16 /TB	$198.99 as of Sep 12, 2026 10:58 UTC	3 mo	View
Seagate Skyhawk ST6000VX0023 6 TB Internal Hard Drive ST6000VX0023 specifications →	3.5-inch	HDD	6 TB 6000 GB	Used	$33.33 /TB	$199.99 as of Sep 12, 2026 10:53 UTC	—	View
Seagate Skyhawk ST6000VX001 6TB 3.5" Internal Hard Drive - SATA ST6000VX001 specifications →	3.5-inch	HDD	6 TB 6000 GB	Used	$33.33 /TB	$199.99 as of Sep 12, 2026 11:46 UTC	—	View
Western Digital 6TB WD Red NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, SMR, 256MB Cache, 3.5" - WD60EFAX	3.5"	HDD	6 TB 6000 GB	Used	$33.33 /TB	$199.99 as of Sep 12, 2026 04:47 UTC	—	View
Seagate Enterprise Capacity 3.5 HDD 6TB 7200 RPM 512e SATA 6Gb/s 128MB-Cache 3.5-Inch Hard Disk Drive - ST6000NM0024 (Renewed)	3.5"	HDD	6 TB 6000 GB	Used	$33.33 /TB	$199.99 as of Sep 12, 2026 11:46 UTC	5 yrs	View
HGST Ultrastar 7K6000 HUS726060ALE610 (0F23001) 6TB 7200 RPM 128MB Cache SATA 6.0Gbps 3.5in Enterprise Hard Drive - 5 Year Warranty (Renewed),Mechanical Hard Disk	Internal 3.5"	HDD	6 TB 6000 GB	Used	$33.33 /TB	$199.99 as of Sep 12, 2026 10:58 UTC	3 mo	View
ST6000NM0115 3.5"-Inch HDD 6TB 7200 RPM 512e SATA 6Gb/s 256MB Cache Internal Hard Drive (Renewed)	Internal 3.5"	HDD	6 TB 6000 GB	Used	$33.33 /TB	$199.99 as of Sep 12, 2026 10:58 UTC	3 mo	View
Seagate Skyhawk 6TB Surveillance Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 256MB Cache for DVR NVR Security Camera System with Drive Health Management (ST6000VX0023) ST6000VX0023 specifications →	Internal 3.5"	HDD	6 TB 6000 GB	Used	$33.50 /TB	$201.00 as of Sep 12, 2026 10:56 UTC	—	View
Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD60PURZ	3.5"	HDD	6 TB 6000 GB	Used	$35.00 /TB	$209.99 as of Sep 12, 2026 04:47 UTC	—	View
Western Digital 6TB Ultrastar DC HC310 7200 RPM SATA 6.0Gb/s 3.5" Data Center Internal Hard Drive Model 0B36039 (Renewed)	Internal 3.5"	HDD	6 TB 6000 GB	Used	$35.00 /TB	$209.99 as of Sep 12, 2026 10:55 UTC	3 mo	View
HP Enterprise 797269-B21 6TB 7.2K Midline 7.2K 6gb/s SATA 3.5inch LP Hard Drive	Internal 3.5"	HDD	6 TB 6000 GB	Used	$35.17 /TB	$211.00 as of Sep 12, 2026 10:52 UTC	—	View
Seagate Skyhawk 6TB Video Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 256MB Cache for DVR NVR Security Camera System with in-House Rescue Services (ST6000VXZ09/009)	3.5"	HDD	6 TB 6000 GB	New	$35.83 /TB	$214.99 as of Sep 12, 2026 11:44 UTC	—	View
Western Digital WD60EFRX 6TB SATA 64MB 3.5" HD Red	Internal 3.5"	HDD	6 TB 6000 GB	Used	$38.17 /TB	$229.00 as of Sep 12, 2026 10:58 UTC	—	View
Western Digital 6TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 64 MB Cache, 3.5" - WD60EFRX	3.5"	HDD	6 TB 6000 GB	Used	$38.33 /TB	$229.99 as of Sep 11, 2026 21:03 UTC	—	View
WD Red Pro 6TB 3.5-Inch SATA III 7200rpm 128MB Cache NAS Internal Hard Drive (WD6002FFWX)	3.5"	HDD	6 TB 6000 GB	Used	$38.33 /TB	$229.99 as of Sep 12, 2026 04:47 UTC	—	View
Seagate 6TB IronWolf NAS SATA 6Gb/s NCQ 128MB Cache 3.5-Inch Internal Hard Drive (ST6000VN0041) ST6000VN0041 specifications →	3.5-inch	HDD	6 TB 6000 GB	Used	$38.33 /TB	$229.99 as of Sep 12, 2026 11:46 UTC	—	View
WD Red Pro 6TB 3.5-Inch SATA III 7200rpm 128MB Cache NAS Internal Hard Drive (WD6002FFWX) (Renewed)	3.5"	HDD	6 TB 6000 GB	Used	$38.33 /TB	$229.99 as of Sep 12, 2026 11:47 UTC	—	View
(Old Model) Seagate 6TB Desktop HDD SATA 6Gb/s NCQ 128MB Cache 7200RPM 3.5-Inch Internal Bare Drive ST6000DM001 ST6000DM001 specifications →	3.5-inch	HDD	6 TB 6000 GB	New	$40.67 /TB	$244.00 as of Sep 12, 2026 11:46 UTC	—	View
Seagate Barracuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (ST6000DM003) ST6000DM003 specifications →	3.5-inch	HDD	6 TB 6000 GB	New	$41.50 /TB	$249.00 as of Sep 12, 2026 11:46 UTC	2 yrs	View
Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 128 MB Cache, 3.5" - WD62PURZ	3.5"	HDD	6 TB 6000 GB	Used	$41.66 /TB	$249.99 as of Sep 12, 2026 04:49 UTC	—	View
Seagate Exos 7E8 6TB Internal Hard Drive Enterprise HDD – CMR 3.5 Inch 512E SATA 6Gb/s 7200 RPM 128MB Cache for Enterprise, Data Center – Frustration Free Packaging (ST6000NM021A)	3.5"	HDD	6 TB 6000 GB	Used	$43.33 /TB	$259.99 as of Sep 12, 2026 11:46 UTC	—	View
Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD63PURZ	3.5"	HDD	6 TB 6000 GB	Used	$43.33 /TB	$259.99 as of Sep 12, 2026 04:47 UTC	3 yrs	View
ST6000NM0115 3.5"-Inch HDD 6TB 7200 RPM 512e SATA 6Gb/s 256MB Cache Internal Hard Drive	Internal 3.5"	HDD	6 TB 6000 GB	New	$45.00 /TB	$270.00 as of Sep 12, 2026 04:48 UTC	—	View
Seagate Barracuda 6TB 3.5" 6000 GB Serial ATA III	3.5-inch	HDD	6 TB 6000 GB	Used	$45.33 /TB	$272.00 as of Sep 12, 2026 11:46 UTC	—	View
Seagate ST6000VN0033 Iron Wolf Multimedia Server Storage 6TB Internal Hard Drive 3.5" - SATA ST6000VN0033 specifications →	3.5-inch	HDD	6 TB 6000 GB	Used	$46.66 /TB	$279.99 as of Sep 12, 2026 11:46 UTC	—	View
Seagate Exos 7E8 ST6000NM021A 6 TB Hard Drive - Internal - SATA (SATA/600)	Internal 3.5"	HDD	6 TB 6000 GB	Used	$46.67 /TB	$280.00 as of Sep 12, 2026 10:56 UTC	5 yrs	View
Toshiba N300 6TB NAS 3.5-Inch Internal Hard Drive - CMR SATA 6 GB/s 7200 RPM 512 MB Cache - HDWG760XZSTA	3.5"	HDD	6 TB 6000 GB	New	$46.83 /TB	$280.99 as of Sep 12, 2026 11:47 UTC	—	View
Seagate 6TB Enterprise NAS HDD SATA 6Gb/s 128MB Cache 3.5-Inch Internal Bare Drive (ST6000VN0001) (Renewed)	Internal 3.5"	HDD	6 TB 6000 GB	Used	$49.50 /TB	$297.00 as of Sep 12, 2026 10:55 UTC	3 mo	View
Seagate 6 TB 3.5" Internal Hard Drive ST6000AS0002	Internal 3.5"	HDD	6 TB 6000 GB	Used	$49.83 /TB	$299.00 as of Sep 12, 2026 15:35 UTC	—	View
Seagate IronWolf Pro ST6000NE000 6 TB Hard Drive - 3.5" Internal - SATA (SATA/600) ST6000NE000 specifications →	3.5-inch	HDD	6 TB 6000 GB	Used	$50.00 /TB	$299.99 as of Sep 12, 2026 11:46 UTC	—	View
Seagate IronWolf ST6000VN001 6 TB Hard Drive - 3.5" Internal - SATA (SATA/600) ST6000VN001 specifications →	3.5-inch	HDD	6 TB 6000 GB	New	$50.00 /TB	$299.99 as of Sep 12, 2026 11:44 UTC	—	View
Western Digital 6TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD60EFPX (Renewed) WD60EFPX specifications →	Internal 3.5"	HDD	6 TB 6000 GB	Used	$50.00 /TB	$300.00 as of Sep 12, 2026 10:54 UTC	3 mo	View
Seagate BarraCuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC – Frustration Free Packaging (ST6000DMZ03)	Internal 3.5"	HDD	6 TB 6000 GB	New	$51.33 /TB	$308.00 as of Sep 12, 2026 10:56 UTC	2 yrs	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.

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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.