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Product & specifications					Amazon offer
Seagate Exos x12 12TB SATA 6Gb/s 256MB Cache Enterprise Hard Drive 3.5in (ST12000NM0127) (Renewed) Check form factorHDD Listed warranty: 3 months · verify seller 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 11:46 UTC	12 TB 12000 GB	Used / renewed	$25.67 /TB	$307.99	Amazon ↗
Seagate Exos X14 ST12000NM0008 12 TB Hard Drive - 3.5" Internal - SATA (SATA/600) 3.5"HDD 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 04:41 UTC	12 TB 12000 GB	Used / renewed	$26.63 /TB	$319.59	Amazon ↗
MDD MAXDIGITALDATA (MDD12TSATA25672E) 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Enterprise Hard Drive (Renewed) Internal 3.5"HDD Listed warranty: 60 months · verify seller 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 04:40 UTC	12 TB 12000 GB	Used / renewed	$27.50 /TB	$329.95	Amazon ↗
HGST 12TB Ultrastar DC HC520 SATA 6Gb/s 7200RPM 3.5-inch 256MB Cache HUH721212ALE604 0F29592, with Power Disable Feature (Renewed) Internal 3.5"HDD Listed warranty: 3 months · verify seller 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 04:39 UTC	12 TB 12000 GB	Used / renewed	$28.33 /TB	$339.99	Amazon ↗
HGST WD Ultrastar DC HC520 12TB HDD 7200 RPM SATA 6Gb/s 256MB Cache 3.5-Inch Enterprise Hard Drive \| Power-Disable \| HUH721212ALE604 0F29592 (Renewed) Internal 3.5"HDD Listed warranty: 3 months · verify seller 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 04:39 UTC	12 TB 12000 GB	Used / renewed	$28.33 /TB	$339.99	Amazon ↗
Western Digital 12TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD121PURZ 3.5"HDD 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 11:49 UTC	12 TB 12000 GB	Used / renewed	$29.17 /TB	$349.99	Amazon ↗
Western Digital 12TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD121KFBX 3.5-inchHDD WD121KFBX specifications → 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 11:49 UTC	12 TB 12000 GB	Used / renewed	$29.17 /TB	$350.00	Amazon ↗
TOSHIBA Internal Hard Disk Server for NAS 3.5" Enterprise HDD 12TB SATA 6 Gbit/s 7200rpm 3 Year Warranty MG07ACA12TE (Renewed) 3.5"HDD Listed warranty: 3 months · verify seller 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 11:44 UTC	12 TB 12000 GB	Used / renewed	$29.17 /TB	$349.99	Amazon ↗
MDD (MDD12TSATA25672NAS) 12TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal NAS Hard Drive - 5 Years Warranty (Renewed) Internal 3.5"HDD Listed warranty: 60 months · verify seller 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 04:40 UTC	12 TB 12000 GB	Used / renewed	$29.17 /TB	$349.99	Amazon ↗
MDD MAXDIGITALDATA MDD - HC520 HUH721212ALE601 12TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5-inch Enterprise Hard Drive - 5 Year Warranty (Renewed) Internal 3.5"HDD Listed warranty: 60 months · verify seller 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 04:40 UTC	12 TB 12000 GB	Used / renewed	$29.17 /TB	$349.99	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 · Used / renewed · Amazon US Price checked Oct 17, 2026 10:58 UTC	12 TB 12000 GB	Used / renewed	$30.00 /TB	$359.99	Amazon ↗
Western Digital HUH721212ALE604 12TB Ultrastar DC HC520 SATA HDD - 7200 RPM Class, SATA 6 Gb/s, 256MB Cache, 3.5" 3.5"HDD 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 10:54 UTC	12 TB 12000 GB	Used / renewed	$30.00 /TB	$359.99	Amazon ↗
Seagate Exos x12 12TB SATA 6Gb/s 256MB Cache Enterprise Hard Drive 3.5in (ST12000NM0007) (Renewed) Check form factorHDD Listed warranty: 3 months · verify seller 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 11:46 UTC	12 TB 12000 GB	Used / renewed	$30.00 /TB	$359.99	Amazon ↗
Western Digital HGST Ultrastar He12 \| HUH721212ALE600 \| 12TB 7.2K RPM SATA-6Gb/s 3.5"" 256MB cache Hard Disk Drive (Renewed) 3.5"HDD 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 10:55 UTC	12 TB 12000 GB	Used / renewed	$30.00 /TB	$359.99	Amazon ↗
Seagate 12TB HDD Exos X14 SATA 6Gb/s 512e 7200RPM 3.5" Enterprise Hard Drive (Renewed) 3.5"HDD Listed warranty: 24 months · verify seller 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 11:46 UTC	12 TB 12000 GB	Used / renewed	$32.50 /TB	$389.99	Amazon ↗
Seagate Exos ST12000NM004C 12TB 7200RPM CRM SATA 6Gb/s 512MB Cache 3.5-Inch Enterprise Hard Drive (Renewed) 3.5"HDD 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 10:54 UTC	12 TB 12000 GB	Used / renewed	$32.50 /TB	$389.99	Amazon ↗
Seagate Exos ST12000NM002C 12TB 7200RPM CRM SATA 6Gb/s 512MB Cache 3.5-Inch Enterprise Hard Drive (Renewed) 3.5"HDD 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 10:53 UTC	12 TB 12000 GB	Used / renewed	$32.50 /TB	$389.99	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 · Used / renewed · Amazon US Price checked Oct 17, 2026 04:40 UTC	12 TB 12000 GB	Used / renewed	$34.60 /TB	$415.25	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 · Used / renewed · Amazon US Price checked Oct 17, 2026 04:39 UTC	12 TB 12000 GB	Used / renewed	$34.86 /TB	$418.29	Amazon ↗
Western Digital 12TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD120EFAX 3.5"HDD 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 11:49 UTC	12 TB 12000 GB	Used / renewed	$35.83 /TB	$429.99	Amazon ↗
Western Digital 12TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD121PURP 3.5"HDD 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 11:49 UTC	12 TB 12000 GB	Used / renewed	$35.83 /TB	$429.99	Amazon ↗
Western Digital 12TB WD Gold Enterprise Class Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD121KRYZ Internal 3.5"HDD Listed warranty: 60 months · verify seller 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 04:39 UTC	12 TB 12000 GB	Used / renewed	$36.42 /TB	$436.99	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 17, 2026 04:40 UTC	12 TB 12000 GB	New	$36.81 /TB	$441.75	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 17, 2026 04:39 UTC	12 TB 12000 GB	New	$39.17 /TB	$469.99	Amazon ↗
Seagate-IMSourcing Exos X16 ST12000NM003G 12 TB Hard Drive - Internal - SATA [SATA/600] 3.5-inchHDD ST12000NM003G specifications → 12TB · New · Amazon US Price checked Oct 17, 2026 04:42 UTC	12 TB 12000 GB	New	$40.79 /TB	$489.45	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 17, 2026 10:54 UTC	12 TB 12000 GB	New	$41.58 /TB	$499.00	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 · Used / renewed · Amazon US Price checked Oct 17, 2026 10:54 UTC	12 TB 12000 GB	Used / renewed	$41.67 /TB	$499.99	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 17, 2026 11:46 UTC	12 TB 12000 GB	New	$42.08 /TB	$505.00	Amazon ↗
WD Gold 12TB Enterprise Class Internal Hard Drive - 7200 RPM Class, SATA 6 GB/S, 256 MB Cache, 3.5" - WD121KRYZ (Renewed) 3.5"HDD 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 10:54 UTC	12 TB 12000 GB	Used / renewed	$42.42 /TB	$509.00	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 17, 2026 10:58 UTC	12 TB 12000 GB	New	$43.70 /TB	$524.45	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 17, 2026 04:41 UTC	12 TB 12000 GB	New	$44.07 /TB	$528.85	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 17, 2026 10:54 UTC	12 TB 12000 GB	New	$44.17 /TB	$529.99	Amazon ↗
Seagate IronWolf Pro ST12000NE0008 12 TB Hard Drive - 512E Format - SATA 600-3.5" Drive - Internal - 7200RPM - 256 MB Buffer - Hot Pluggable 3.5-inchHDD ST12000NE0008 specifications → 12TB · New · Amazon US Price checked Oct 17, 2026 11:46 UTC	12 TB 12000 GB	New	$44.58 /TB	$534.99	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 17, 2026 04:40 UTC	12 TB 12000 GB	New	$45.00 /TB	$539.99	Amazon ↗
Seagate (Old Model) Seagate Exos 12TB Internal Hard Drive Enterprise HDD – 3.5 Inch 6Gb/s 7200 RPM 128MB Cache for Enterprise, Data Center – Frustration Free Packaging 3.5"HDD 12TB · New · Amazon US Price checked Oct 17, 2026 04:42 UTC	12 TB 12000 GB	New	$45.75 /TB	$548.99	Amazon ↗
Seagate Exos X24 3.5" Internal Hard Drive - 12TB, Single, SATA III 6 Gb/s 3.5-inchHDD Listed warranty: 12 months · verify seller 12TB · New · Amazon US Price checked Oct 17, 2026 04:43 UTC	12 TB 12000 GB	New	$47.50 /TB	$569.99	Amazon ↗
Seagate Skyhawk 12TB 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 (ST12000VX0008) 3.5"HDD Listed warranty: 36 months · verify seller 12TB · New · Amazon US Price checked Oct 17, 2026 11:48 UTC	12 TB 12000 GB	New	$47.80 /TB	$573.60	Amazon ↗
Dell 12 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Server, Storage System, Network Controller Device Supported - 7200rpm - Hot Swappable Internal 3.5"HDD 12TB · Used / renewed · Amazon US Price checked Oct 17, 2026 10:58 UTC	12 TB 12000 GB	Used / renewed	$48.73 /TB	$584.74	Amazon ↗
Seagate IronWolf Pro 12TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage Data Recovery Service – Frustration Free Packaging (ST12000NEZ008) 3.5"HDD Listed warranty: 60 months · verify seller 12TB · New · Amazon US Price checked Oct 17, 2026 11:47 UTC	12 TB 12000 GB	New	$49.54 /TB	$594.45	Amazon ↗
Western Digital 12TB WD Gold Enterprise Class Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD122KRYZ Internal 3.5"HDD Listed warranty: 60 months · verify seller WD122KRYZ specifications → 12TB · New · Amazon US Price checked Oct 17, 2026 10:57 UTC	12 TB 12000 GB	New	$49.58 /TB	$594.99	Amazon ↗
Western Digital 12TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD121PURZ 3.5"HDD 12TB · New · Amazon US Price checked Oct 17, 2026 11:49 UTC	12 TB 12000 GB	New	$50.00 /TB	$599.99	Amazon ↗
Seagate IronWolf Pro 12 TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 7200 RPM 256 MB Cache for RAID Network Attached Storage, Data Recovery Rescue Service (ST12000NE0007) 3.5-inchHDD ST12000NE0007 specifications → 12TB · New · Amazon US Price checked Oct 17, 2026 11:47 UTC	12 TB 12000 GB	New	$52.87 /TB	$634.45	Amazon ↗
Seagate Exos X18 ST12000NM001J 12 TB Hard Drive - Internal - SATA (SATA/600) - Conventional Magnetic Recording (CMR) Method - Storage System, Video Surveillance System Device Supported - 7200rpm - 270 3.5-inchHDD Listed warranty: 36 months · verify seller ST12000NM001J specifications → 12TB · New · Amazon US Price checked Oct 17, 2026 11:46 UTC	12 TB 12000 GB	New	$52.87 /TB	$634.45	Amazon ↗
Toshiba N300 12TB NAS 3.5-Inch Internal Hard Drive - CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG51CXZSTA 3.5"HDD 12TB · New · Amazon US Price checked Oct 17, 2026 11:44 UTC	12 TB 12000 GB	New	$53.32 /TB	$639.88	Amazon ↗
Seagate IronWolf ST12000VN0007 12 TB 3.5 Internal Hard Drive - SATA - 7200rpm - 256 MB Buffer 3.5-inchHDD ST12000VN0007 specifications → 12TB · New · Amazon US Price checked Oct 17, 2026 11:47 UTC	12 TB 12000 GB	New	$53.70 /TB	$644.45	Amazon ↗
Dell 12 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Server, Storage System, Network Controller Device Supported - 7200rpm - Hot Swappable Internal 3.5"HDD 12TB · New · Amazon US Price checked Oct 17, 2026 10:58 UTC	12 TB 12000 GB	New	$53.73 /TB	$644.79	Amazon ↗

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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.

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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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