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Product & specifications					Amazon offer
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 Listed warranty: 60 months · verify seller 6TB · New · Amazon US Price checked Oct 28, 2026 13:11 UTC	6 TB 6000 GB	New	$26.67 /TB	$159.99	Amazon ↗
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 Listed warranty: 60 months · verify seller 6TB · New · Amazon US Price checked Oct 28, 2026 13:11 UTC	6 TB 6000 GB	New	$27.33 /TB	$164.00	Amazon ↗
HGST Ultrastar 7K6000 HUS726060ALE610 0F23001 6TB 7200 RPM SATA 3.5" 512E ISE 128MB Cache Enterprise Hard Drive Internal 3.5"HDD 6TB · New · Amazon US Price checked Oct 28, 2026 13:11 UTC	6 TB 6000 GB	New	$31.67 /TB	$189.99	Amazon ↗
Seagate ST6000NM0024 6TB 7.2K SATA 3.5" HDD 3.5"HDD 6TB · New · Amazon US Price checked Oct 28, 2026 13:08 UTC	6 TB 6000 GB	New	$31.67 /TB	$189.99	Amazon ↗
Toshiba MG04ACA600E 6TB 3.5" SATA 6GBPS Enterprise HDD 3.5"HDD 6TB · New · Amazon US Price checked Oct 28, 2026 14:29 UTC	6 TB 6000 GB	New	$31.67 /TB	$189.99	Amazon ↗
WD 6TB 3.5" AE Datacenter Archive SATA III 64 MB Cache Enterprise Hard Drive (WD6001F4PZ) 3.5"HDD 6TB · New · Amazon US Price checked Oct 28, 2026 13:06 UTC	6 TB 6000 GB	New	$33.33 /TB	$199.99	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 28, 2026 05:52 UTC	20 TB 20000 GB	New	$34.95 /TB	$698.99	Amazon ↗
Seagate 8TB BarraCuda Internal Hard Drive \| SATA 6 Gb/s (ST8000DM004) Internal 3.5"HDD Listed warranty: 24 months · verify seller ST8000DM004 specifications → 8TB · New · Amazon US Price checked Oct 28, 2026 13:11 UTC	8 TB 8000 GB	New	$35.00 /TB	$279.99	Amazon ↗
Toshiba MG04ACA400N - Toshiba 4TB 3.5" SATA 7.2K 6Gb/s Hard Drive 3.5"HDD 4TB · New · Amazon US Price checked Oct 28, 2026 14:29 UTC	4 TB 4000 GB	New	$36.25 /TB	$145.00	Amazon ↗
Seagate Exos X14 ST12000NM0008 12 TB Hard Drive - 3.5" Internal - SATA (SATA/600) 3.5"HDD 12TB · New · Amazon US Price checked Oct 28, 2026 14:31 UTC	12 TB 12000 GB	New	$37.50 /TB	$449.99	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 28, 2026 14:28 UTC	20 TB 20000 GB	New	$37.50 /TB	$749.99	Amazon ↗
ST6000NM0115 3.5"-Inch HDD 6TB 7200 RPM 512e SATA 6Gb/s 256MB Cache Internal Hard Drive Internal 3.5"HDD 6TB · New · Amazon US Price checked Oct 28, 2026 13:05 UTC	6 TB 6000 GB	New	$37.50 /TB	$225.00	Amazon ↗
TOSHIBA N300 Internal Hard Drive 22 Tb 7200 RPM 512 Mb 3.5", W129161818 (Tb 7200 RPM 512 Mb 3.5 Serial Ata Iii) 3.5"HDD Listed warranty: 36 months · verify seller 22TB · New · Amazon US Price checked Oct 28, 2026 14:27 UTC	22 TB 22000 GB	New	$37.77 /TB	$831.00	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 28, 2026 14:28 UTC	20 TB 20000 GB	New	$38.35 /TB	$766.99	Amazon ↗
Seagate Constellation Es.3 St4000nm0023 4 Tb 3.5 Internal Hard Drive Internal 3.5"HDD 4TB · New · Amazon US Price checked Oct 28, 2026 13:11 UTC	4 TB 4000 GB	New	$38.72 /TB	$154.88	Amazon ↗
Western Digital 8TB WD Blue PC Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD80EAAZ 3.5-inchHDD Listed warranty: 24 months · verify seller WD80EAAZ specifications → 8TB · New · Amazon US Price checked Oct 28, 2026 14:29 UTC	8 TB 8000 GB	New	$38.75 /TB	$309.99	Amazon ↗
Seagate Exos 12TB Internal Hard Drive Enterprise HDD – 3.5 Inch 6Gb/s 128MB Cache for Enterprise, Data Center – Frustration Free Packaging (ST12000NM0007) 3.5"HDD Listed warranty: 60 months · verify seller 12TB · New · Amazon US Price checked Oct 28, 2026 14:28 UTC	12 TB 12000 GB	New	$39.06 /TB	$468.68	Amazon ↗
Toshiba MG Series Enterprise 12TB 3.5’’ SATA 6Gbit/s Internal HDD 7200RPM 550TB/year 24/7 Operation. MG07ACA12TE Internal 3.5"HDD Listed warranty: 60 months · verify seller 12TB · New · Amazon US Price checked Oct 28, 2026 13:11 UTC	12 TB 12000 GB	New	$39.17 /TB	$469.99	Amazon ↗
Seagate IronWolf Pro, 16 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6 Gb/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST16000NT001) Internal 3.5"HDD Listed warranty: 36 months · verify seller ST16000NT001 specifications → 16TB · New · Amazon US Price checked Oct 28, 2026 13:03 UTC	16 TB 16000 GB	New	$39.37 /TB	$629.99	Amazon ↗
Seagate Enterprise 3.5" 18000 GB 7200 RPM 18 TB 3.5" 7200 RPM SATA ST18000NM00J 3.5-inchHDD 18TB · New · Amazon US Price checked Oct 28, 2026 14:27 UTC	18 TB 18000 GB	New	$39.56 /TB	$712.00	Amazon ↗
WL 3TB 7200RPM 64MB Cache SATA III 6.0Gb/s 3.5" Internal Desktop Hard Drive (For RAID, NAS, DVR, Desktop PC) w/1 Year Warranty Internal 3.5"HDD Listed warranty: 12 months · verify seller 3TB · New · Amazon US Price checked Oct 28, 2026 13:11 UTC	3 TB 3000 GB	New	$39.98 /TB	$119.95	Amazon ↗
Seagate Enterprise Capacity \| ST10000NM0016 \| 10TB 7200 RPM SATA 6.0Gb/s 256MB Cache Hyperscale 512e 3.5" Hard Disk Drives 3.5"HDD 10TB · New · Amazon US Price checked Oct 28, 2026 13:06 UTC	10 TB 10000 GB	New	$39.99 /TB	$399.95	Amazon ↗
Dell 50XV4 1TB 7.2k 3.5" Sata Hard Drive - Ships Same Day Internal 3.5"HDD Listed warranty: 3 months · verify seller 1TB · New · Amazon US Price checked Oct 28, 2026 05:53 UTC	1 TB 1000 GB	New	$39.99 /TB	$39.99	Amazon ↗
Western Digital 3TB 64MB Cache SATA 3.0Gb/s Internal Hard Drive, 3.5" Internal 3.5"HDD 3TB · New · Amazon US Price checked Oct 28, 2026 13:09 UTC	3 TB 3000 GB	New	$40.00 /TB	$120.00	Amazon ↗
Seagate Skyhawk 4TB Video Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 64MB Cache for DVR NVR Security Camera System with Drive Health Management and in-House Rescue Services (ST4000VXZ16/016) 3.5"HDD Listed warranty: 36 months · verify seller 4TB · New · Amazon US Price checked Oct 28, 2026 14:27 UTC	4 TB 4000 GB	New	$40.00 /TB	$159.99	Amazon ↗
Seagate Exos X10 ST10000NM0126 10TB 7200 RPM SATA 6Gb/s 512e 256MB 3.5in Enterprise Hard Drive Check form factorHDD Listed warranty: 24 months · verify seller 10TB · New · Amazon US Price checked Oct 28, 2026 14:28 UTC	10 TB 10000 GB	New	$40.00 /TB	$399.99	Amazon ↗
Seagate BarraCuda Pro 8TB Internal Hard Drive Performance HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC Laptop, Data Recovery – Frustration Free Packaging (ST8000DM004) Internal 3.5"HDD ST8000DM004 specifications → 8TB · New · Amazon US Price checked Oct 28, 2026 13:09 UTC	8 TB 8000 GB	New	$40.50 /TB	$324.00	Amazon ↗
(Old Model) Seagate 6TB Desktop HDD SATA 6Gb/s NCQ 128MB Cache 7200RPM 3.5-Inch Internal Bare Drive ST6000DM001 3.5-inchHDD ST6000DM001 specifications → 6TB · New · Amazon US Price checked Oct 28, 2026 13:04 UTC	6 TB 6000 GB	New	$40.67 /TB	$244.00	Amazon ↗
WD SE 4TB Datacenter Hard Disk Drive - 7200 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch - WD4000F9YZ Internal 3.5"HDD Listed warranty: 60 months · verify seller 4TB · New · Amazon US Price checked Oct 28, 2026 05:55 UTC	4 TB 4000 GB	New	$41.25 /TB	$164.99	Amazon ↗
Seagate Barracuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (ST6000DM003) 3.5-inchHDD Listed warranty: 24 months · verify seller ST6000DM003 specifications → 6TB · New · Amazon US Price checked Oct 28, 2026 14:30 UTC	6 TB 6000 GB	New	$41.50 /TB	$249.00	Amazon ↗
Western Digital WUH721414ALE6L4 14TB Ultrastar DC HC530 SATA HDD - 7200 RPM Class, SATA 6 Gb/s, 512MB Cache, 3.5" 3.5"HDD Listed warranty: 60 months · verify seller 14TB · New · Amazon US Price checked Oct 28, 2026 14:29 UTC	14 TB 14000 GB	New	$41.50 /TB	$581.00	Amazon ↗
Seagate BarraCuda Pro 12TB Internal Hard Drive Performance HDD – 3.5 Inch SATA 6 Gb/s 7200 RPM 256MB Cache for Computer Desktop PC Laptop, Data Recovery – Frustration Free Packaging (ST12000DM0007) Internal 3.5"HDD Listed warranty: 60 months · verify seller 12TB · New · Amazon US Price checked Oct 28, 2026 13:03 UTC	12 TB 12000 GB	New	$41.58 /TB	$499.00	Amazon ↗
Western Digital 12TB WD Blue Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD120EAGZ Internal 3.5"HDD Listed warranty: 24 months · verify seller WD120EAGZ specifications → 12TB · New · Amazon US Price checked Oct 28, 2026 05:53 UTC	12 TB 12000 GB	New	$42.08 /TB	$504.99	Amazon ↗
Toshiba - HDWG81GXZSTB - Toshiba N300 Pro HDWG81GXZSTB 16 TB Hard Drive - 3.5 Internal - SATA (SATA/600) - Conventional 3.5-inchHDD HDWG81GXZSTB specifications → 16TB · New · Amazon US Price checked Oct 28, 2026 05:54 UTC	16 TB 16000 GB	New	$42.11 /TB	$673.69	Amazon ↗
White Label WL 4TB 7200RPM 64MB Cache SATA 6.0Gb/s (Enterprise Grade) 3.5" Hard Drive (for Server, RAID, NAS, DVR, Desktop PC) Internal 3.5"HDD 4TB · New · Amazon US Price checked Oct 28, 2026 13:11 UTC	4 TB 4000 GB	New	$42.49 /TB	$169.95	Amazon ↗
Toshiba Hard Drive - 4 TB - Internal - 3.5" - SATA 6Gb/s - NL - 7200 RPM - Buffer: 128 MB 3.5"HDD 4TB · New · Amazon US Price checked Oct 28, 2026 14:29 UTC	4 TB 4000 GB	New	$42.50 /TB	$169.99	Amazon ↗
Toshiba 22TB Enterprise Internal Hard Drive – MG Series 3.5" SATA HDD for Server, Storage, 24/7 Operation, Hyperscale, Cloud (MG10AFA22TE) 3.5"HDD 22TB · New · Amazon US Price checked Oct 28, 2026 14:28 UTC	22 TB 22000 GB	New	$42.59 /TB	$937.00	Amazon ↗
Seagate 14TB HDD Exos X14 7200 RPM 512e/4Kn SATA 6Gb/s 256MB Cache 3.5-Inch Enterprise Hard Drive (ST14000NM0018) 3.5"HDD 14TB · New · Amazon US Price checked Oct 28, 2026 14:30 UTC	14 TB 14000 GB	New	$42.86 /TB	$600.00	Amazon ↗
Toshiba MG Series Enterprise 14TB 256MB Cache 7200RPM SATA 6.0Gb/s 3.5" Internal Enterprise Hard Drive (MG08ACA14TE) 3.5"HDD 14TB · New · Amazon US Price checked Oct 28, 2026 13:05 UTC	14 TB 14000 GB	New	$42.86 /TB	$599.99	Amazon ↗
HGST WD Ultrastar DC HC510 10TB 7200 RPM SATA 6Gb/s 3.5" Helium Platform Enterprise Hard Disk Drive - HUH721010ALE604 (0F27606) Internal 3.5"HDD 10TB · New · Amazon US Price checked Oct 28, 2026 13:11 UTC	10 TB 10000 GB	New	$42.90 /TB	$429.00	Amazon ↗
Seagate ST10000NM0096 10 TB 3.5" Internal Hard Drive 3.5"HDD Listed warranty: 60 months · verify seller 10TB · New · Amazon US Price checked Oct 28, 2026 13:05 UTC	10 TB 10000 GB	New	$43.48 /TB	$434.75	Amazon ↗
HGST/Western Digital - 0F29590 - HGST Ultrastar He12 HUH721212ALE600 12 TB Hard Drive - 3.5 Internal - SATA (SATA/600) - 7200rpm - 256 MB Buffer - 5 Year Warranty Internal 3.5"HDD Listed warranty: 60 months · verify seller 12TB · New · Amazon US Price checked Oct 28, 2026 13:09 UTC	12 TB 12000 GB	New	$43.70 /TB	$524.45	Amazon ↗
Seagate 32TB IronWolf Pro Internal NAS Hard Drive \| SATA (ST32000NT000) 3.5-inchHDD Listed warranty: 60 months · verify seller ST32000NT000 specifications → 32TB · New · Amazon US Price checked Oct 28, 2026 13:10 UTC	32 TB 32000 GB	New	$43.75 /TB	$1,399.99	Amazon ↗
Seagate ST18000NM003D 18TB Exos X20 SATA Hard Drive, 3.5" HDD, SATA 6Gb/s, 7200rpm, 256MB Cache, 512E, 4.16ms, NCQ 3.5-inchHDD ST18000NM003D specifications → 18TB · New · Amazon US Price checked Oct 28, 2026 14:31 UTC	18 TB 18000 GB	New	$44.00 /TB	$792.00	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 28, 2026 14:28 UTC	20 TB 20000 GB	New	$44.00 /TB	$879.99	Amazon ↗
Seagate IronWolf 3.5" 12TB Internal Hard Disk HDD 3 Year Warranty 256MB 7200rpm 24 Hours Service for PC NAS RV Sensor ST12000VN0008 3.5-inchHDD ST12000VN0008 specifications → 12TB · New · Amazon US Price checked Oct 28, 2026 14:32 UTC	12 TB 12000 GB	New	$44.17 /TB	$529.99	Amazon ↗
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) 3.5-inchHDD Listed warranty: 60 months · verify seller ST24000NT002 specifications → 24TB · New · Amazon US Price checked Oct 28, 2026 14:27 UTC	24 TB 24000 GB	New	$44.17 /TB	$1,059.99	Amazon ↗
Seagate 4 TB 3.5" Internal Hard Drive 3.5"HDD 4TB · New · Amazon US Price checked Oct 28, 2026 13:04 UTC	4 TB 4000 GB	New	$44.26 /TB	$177.03	Amazon ↗
Seagate Enterprise Capacity 3.5 HDD 8TB 7200 RPM SATA 6Gb/s 256MB Cache 4Kn 3.5-Inch Enterprise Hard Disk Drive (ST8000NM0045) Internal 3.5"HDD Listed warranty: 60 months · verify seller 8TB · New · Amazon US Price checked Oct 28, 2026 13:09 UTC	8 TB 8000 GB	New	$44.38 /TB	$355.00	Amazon ↗
Western Digital 12TB WD Red Plus NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 GB/s, CMR, 512 MB Cache, 3.5" - WD120EFGX Internal 3.5"HDD Listed warranty: 36 months · verify seller WD120EFGX specifications → 12TB · New · Amazon US Price checked Oct 28, 2026 05:53 UTC	12 TB 12000 GB	New	$44.48 /TB	$533.81	Amazon ↗

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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 comparison

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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.

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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.

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Frequently Asked Questions

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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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