Storage prices · Amazon US

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Product & specifications					Amazon offer
Seagate Exos ST20000NM004C 20TB 7200RPM 512e SATA 6Gb/s 512MB Cache CMR 3.5-Inch Enterprise Hard Drive (Renewed) 3.5"HDD 20TB · Used / renewed · Amazon US Price checked Oct 27, 2026 13:32 UTC	20 TB 20000 GB	Used / renewed	$32.50 /TB	$649.99	Amazon ↗
Western Digital Ultrastar DC HC560 WUH722020BLE601 0F38781 20TB 7200 RPM SATA 6Gb/s 512e 512MB Cache Power Disable 3.5in Enterprise Hard Drive (Renewed) Check form factorHDD 20TB · Used / renewed · Amazon US Price checked Oct 27, 2026 12:22 UTC	20 TB 20000 GB	Used / renewed	$33.95 /TB	$679.00	Amazon ↗
Seagate Exos X24 20TB Enterprise Hard Drive HDD SATA 6Gb/s 512MB Cache 7200 RPM 512e CMR Helium Sealed 3.5in Hard Drive ST20000NM000H (Renewed) Check form factorHDD 20TB · Used / renewed · Amazon US Price checked Oct 27, 2026 05:17 UTC	20 TB 20000 GB	Used / renewed	$34.50 /TB	$689.99	Amazon ↗
BUFFALO Replacement Spare Hard Drive 20TB NAS-Grade for TeraStation 2/4/8 Bay (OP-HD20.0N) Internal 3.5"HDD Listed warranty: 36 months · verify seller 20TB · New · Amazon US Price checked Oct 27, 2026 12:21 UTC	20 TB 20000 GB	New	$34.95 /TB	$698.99	Amazon ↗
Seagate (Renewed) Exos X22 20TB SATA 6Gb/s 7200RPM 3.5-inch Enterprise HDD (ST20000NM004E) 3.5-inchHDD Listed warranty: 3 months · verify seller ST20000NM004E specifications → 20TB · Used / renewed · Amazon US Price checked Oct 27, 2026 13:34 UTC	20 TB 20000 GB	Used / renewed	$37.48 /TB	$749.50	Amazon ↗
Toshiba - HDWG82AXZSTB - Toshiba N300 Pro HDWG82AXZSTB 20 TB Hard Drive - 3.5 Internal - SATA (SATA/600) - Conventional 3.5-inchHDD HDWG82AXZSTB specifications → 20TB · New · Amazon US Price checked Oct 27, 2026 13:34 UTC	20 TB 20000 GB	New	$38.35 /TB	$766.99	Amazon ↗
Western Digital 20TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD201KFGX 3.5-inchHDD WD201KFGX specifications → 20TB · Used / renewed · Amazon US Price checked Oct 27, 2026 13:32 UTC	20 TB 20000 GB	Used / renewed	$40.00 /TB	$799.99	Amazon ↗
Toshiba X300 20TB Performance & Gaming 3.5-Inch Internal Hard Drive – CMR SATA 6 GB/s 7200 RPM 512 MB Cache - HDWR62AXZSTA 3.5"HDD 20TB · New · Amazon US Price checked Oct 27, 2026 13:34 UTC	20 TB 20000 GB	New	$40.00 /TB	$799.99	Amazon ↗
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) 3.5-inchHDD ST20000VE003 specifications → 20TB · New · Amazon US Price checked Oct 27, 2026 13:32 UTC	20 TB 20000 GB	New	$44.00 /TB	$879.99	Amazon ↗
Seagate Exos 20TB 7.2K RPM SATA 6Gb/s 3.5in Enterprise HDD ST20000NM002C Check form factorHDD 20TB · New · Amazon US Price checked Oct 27, 2026 12:25 UTC	20 TB 20000 GB	New	$45.52 /TB	$910.40	Amazon ↗
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 3.5-inchHDD ST20000NM000D specifications → 20TB · New · Amazon US Price checked Oct 27, 2026 13:32 UTC	20 TB 20000 GB	New	$49.72 /TB	$994.43	Amazon ↗
Western Digital Ultrastar WUH722020CLE6L4 20 TB Hard Drive - 3.5" Internal - SATA - Energy-Assisted Magnetic Recording (EAMR) Method 3.5"HDD 20TB · New · Amazon US Price checked Oct 27, 2026 12:19 UTC	20 TB 20000 GB	New	$49.95 /TB	$999.00	Amazon ↗
Toshiba 20TB MG10ACA20TE SATA 600GB 20in1 HDD 3.5-inchHDD MG10ACA20TE specifications → 20TB · New · Amazon US Price checked Oct 27, 2026 13:34 UTC	20 TB 20000 GB	New	$54.45 /TB	$1,089.00	Amazon ↗
Western Digital 20TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD201KFGX 3.5-inchHDD WD201KFGX specifications → 20TB · New · Amazon US Price checked Oct 27, 2026 13:32 UTC	20 TB 20000 GB	New	$60.00 /TB	$1,199.99	Amazon ↗
BUFFALO Replacement Spare Hard Drive 20TB Enterprise-Grade for TeraStation 12-Bay (OP-HD20.0H2U-5Y) Internal 3.5"HDD Listed warranty: 36 months · verify seller 20TB · New · Amazon US Price checked Oct 27, 2026 12:21 UTC	20 TB 20000 GB	New	$66.65 /TB	$1,333.00	Amazon ↗

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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, with timestamps on individual offers. Amazon confirms the final price, seller and availability at checkout.

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NAS Storage

Drives built for 24/7 NAS & RAID workloads

NVMe & SSD

High-performance drives for gaming & workstations

Price per TB

How to read capacity cost alongside compatibility

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.

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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.

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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.

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Surveillance

Surveillance HDDs: DVR/NVR Compatibility and Recording Capacity

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

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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. Comparison tables default to price per TB and can be filtered or sorted. There is 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?

US price refresh jobs run every six hours. Check the timestamp on each offer; not every listing updates in every run. See our Methodology page for details on how we collect and calculate prices.

What does "price per TB" mean?

Price divided by the listed decimal capacity (1TB = 1,000GB), before formatting and RAID overhead. Compare compatible drives in the same condition. Full explanation in our price-per-TB guide.

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