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Seagate IronWolf Pro, 4 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6… competes with other NAS & Home Servers products on SpecPicks. Use our Compare tool to view specs side-by-side, or browse the full NAS & Home Servers category for alternatives.

Seagate IronWolf Pro, 4 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6 Gb/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST4000NT001)

Name: Seagate IronWolf Pro, 4 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6 Gb/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage
Brand: Unbranded
SKU: B0B94MX35D
Price: 194.99 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-06

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$194.99

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View Current Price on Amazon → Compare to similar nas & home servers

*Price sourced from Amazon.com. Last updated 2026-04-20. Price and availability subject to change.

Bottom line: The Seagate IronWolf Pro, 4 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6 Gb/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST4000NT001) is a niche pick — read recent reviews before buying in the nas & home servers category, priced around $194.99. Compare close alternatives before committing.

IronWolf® Pro drives are engineered to deliver 24×7 performance, reliability, and dependability in multi-bay, multi-user commercial and enterprise RAID storage solutions. Built tough with conventional magnetic recording (CMR) technology, rotational vibration sensors, and AgileArray™ firmware for consistent, best-in-class performance and total cost of ownership (TCO). Peace of mind with five-year limited warranty, complimentary three-year Rescue Data Recovery Services, and IronWolf Health Management.

SpecPicks Verdict

SpecPicks scored Seagate IronWolf Pro, 4 TB, Enterprise NAS Internal HDD –CMR 3.5… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the nas & home servers category. Compare with similarly-priced alternatives in the nas & home servers category before committing. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

Common buyer scenarios for nas & home servers of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

High Performance: All-CMR (conventional magnetic recording) portfolio enables consistent, industry-leading 24×7 performance allowing users to access data anytime, anywhere
Class-Leading Dependability: Up to 550TB/year workload rating, 2.5M hours MTBF, and 5-year limited warranty for unparalleled total cost of ownership (TCO)
Peace of Mind with Data Recovery: Complimentary 3 year Rescue Data Recovery Services for a hassle-free, zero-cost data recovery experience
IronWolf Health Management: Helps protect data with prevention, intervention, and recovery recommendations to ensure peak system health
Optimized for NAS: AgileArray with dual-plane balancing, time-limited error recovery (TLER), and rotational vibration (RV) sensors to deliver top RAID performance in multi-bay environments

Full Specifications

Brand	Seagate
Color	NAS PRO
Model Name	ST4000NT001
Read Speed	6 gigabytes_per_second
Unit Count	1 Count
Form Factor	3.5-inch
Media Speed	190 MB/s
Model Number	ST4000NT001
Built-In Media	IronWolf™ Pro 4TB SATA
Hard-Drive Size	4 TB
Mfr Part Number	ST4000NT001
Number of Items	1
Special Feature	Portable
Vibration/Rumble	Yes
Installation Type	Internal Hard Drive
Compatible Devices	Laptop
Data Transfer Rate	5000 megabytes_per_second
Enclosure Material	Aluminum/Glass
Additional Features	Portable
Hard Disk Interface	Serial ATA

Ready to buy?

Seagate IronWolf Pro, 4 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6 Gb/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST4000NT001) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-04-20. Price and availability subject to change.