Seagate
Seagate ST4000NT001 IronWolf Pro 4TB NAS Internal HDD
★★★★★
Enterprise-class 4TB NAS drive with 7200RPM speed, 550TB/year workload rating, and 3 years of free data recovery.
$199.99*$229.99Save 13%
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*Price sourced from Amazon.com. Last updated:Jun 03, 2026.Price and availability are subject to change.
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Overview
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
Specifications
Brand
Seagate
Model
ST4000NT001
Capacity
4 TB
Form Factor
3.5 Inch
Interface
SATA 6 Gb/s
Spindle Speed
7,200 RPM
Cache
256 MB
Recording Technology
CMR (Conventional Magnetic Recording)
Workload Rating
Up to 550 TB/year
MTBF
2.5 Million Hours
Warranty
5-Year Limited
Data Recovery
3-Year Rescue Data Recovery Services
Pros & Cons
👍 Pros
- 550TB/year workload rating supports heavy multi-user NAS read/write demands
- Rotational vibration sensors and dual-plane balancing maintain reliability in multi-bay enclosures
- Complimentary 3-year Rescue Data Recovery Services included at no extra cost
- All-CMR recording technology ensures consistent write performance without SMR limitations
- 5-year limited warranty and 2.5 million hours MTBF reflect enterprise-grade durability
👎 Cons
- 4TB capacity is on the lower end for NAS users with large media libraries or growing storage needs
- 7200RPM spindle speed produces more noise and heat than 5400RPM alternatives
- Higher price per terabyte compared to non-Pro IronWolf or desktop-class drives
- 3.5-inch form factor limits use to desktop NAS enclosures — not suitable for compact 2.5-inch bays
Frequently Asked Questions
What is the workload rating of the IronWolf Pro 4TB?
It is rated for up to 550TB per year, which is significantly higher than standard desktop drives and suitable for demanding multi-user NAS environments.
Does the IronWolf Pro include any data recovery services?
Yes, Seagate includes a complimentary 3-year Rescue Data Recovery Services plan at no additional cost, covering data loss from mechanical failure, accidental damage, and natural disasters.
What is IronWolf Health Management and how does it work?
IronWolf Health Management (IHM) is a drive monitoring system integrated into compatible NAS devices that tracks drive health metrics and provides prevention, intervention, and recovery recommendations before potential failures occur.
Is this drive compatible with multi-bay NAS enclosures?
Yes, the IronWolf Pro features AgileArray technology with rotational vibration sensors and dual-plane balancing specifically designed for reliable operation in multi-bay RAID configurations.
What recording technology does this drive use?
It uses CMR (Conventional Magnetic Recording), which provides consistent write performance without the shingled overlap limitations of SMR drives.
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