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Seagate IronWolf Pro 4TB NAS Hard Drive 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

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  • 4TB Storage Capacity
  • 3.5" Form Factor
  • SATA III 6 Gb/s Interface
  • 128MB Cache

The Seagate IronWolf Pro 4TB NAS Hard Drive 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive is a 4TB drive built to withstand 24x7 operations or 8760 hours per year. The Seagate 4TB has been designed for use in 1-24 bay NAS setups within creative professional, SOHO, and SME environments. To protect your data, Seagate includes a limited 2-year Data Recovery Service to retrieve damaged data in the event of a mechanical, accidental, or natural disaster, in addition to a limited 5-year warranty.

This drive has been equipped with a SATA III 6 Gb/s interface, a rotational speed of 7200 rpm, a 3.5" form factor, and a 128MB cache, providing users with ample storage capacity and data transfer speeds of up to 214 MB/s. The IronWolf Pro also has an MTBF rating of 1.2 million hours, a workload rate of up to 300TB per year, an annualized failure rate (AFR) of 0.73%, and a non-recoverable read error rate of 1 per 1015.

General Features

Optimized for NAS with AgileArray

AgileArray is built for dual-plane balancing and RAID optimization in multi-bay environments with advanced power management

Reduced Lag Times

Improved performance means reduced lag times or downtime for users during high traffic time for the NAS

IronWolf Health Management

IronWolf Health Management focuses on prevention, intervention, and recovery

Seagate Rescue Data Recovery

IronWolf Pro comes with extra peace of mind for most mechanical, accidental or natural disasters. With a 90% success rate of in-house recovery, Seagate has your back with an included 2-year Rescue Data Recovery plan

Rotational Vibration (RV) Mitigation

IronWolf Pro comes standard with RV sensors to maintain high performance in multi-bay NAS enclosures

Multi-User Environments

IronWolf Pro provides a workload rate of 300TB per year. Multiple users can upload and download data to the NAS server, knowing IronWolf Pro can handle the workload, whether you are a creative professional or a small business

Cache Memory

IronWolf Pro provides 256MB of cache memory, allowing your NAS to serve data faster

1.2 Million Hours MTBF | Limited 5-Year Warranty

This represents an improved total cost of ownership (TCO) over desktop drives with reduced maintenance costs

Designed for 24x7 Performance

Access your data on your NAS at virtually any time, whether remotely or on site

Best-Fit Applications

Commercial and enterprise network-attached storage (NAS)

1- to 24-bay network attached storage (NAS)

Backup, archiving, and disaster recovery

On-premise private cloud

Virtual storage

In the Box
  • Seagate 4TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDD
  • Limited 2-Year Data Recovery Service (with registration)
  • Limited 5-Year Warranty
  • Seagate Logo
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    More Information
    Product ConditonNew


    Drive Capacity 4.0 TB
    Cache Memory 128 MB


    Interface SATA III (6 Gb/s)
    Maximum Read Speed 214 MB/s
    Latency 4.1 ms


    Drive Type HDD
    Form Factor 3.5"
    Noise Level 2.8 dB (Active)
    2.7 dB (Idle)

    HDD Specs

    Spindle Speed (RPM) 7200 RPM
    Disk Sector Format 512e

    Reliability / Data Integrity

    Annualized Failure Rate (AFR) 0.73 %
    Endurance (Total Bytes Written) 300 TB
    Mean Time Between Failures (MTBF) 1.2 Million Hours
    Non-Recoverable Read Errors per Bits Read 1 in 1015


    Power Draw 6.7 W
    6.0 W
    0.6 W
    Supported Voltage 5 VDC, 12 VDC
    Current 2.0 A at 12 VDC


    Operating Shock 70 G / 2.0 ms
    Storage Shock 300 G / 2.0 ms
    Operating Vibration 12 G / 10 to 1500 Hz
    Storage Vibration 3 G / 10 to 500 Hz
    Operating Temperature 41 to 140°F / 5 to 60°C
    Storage Temperature -40 to 158°F / -40 to 70°C
    Operating Humidity 5 to 95%
    Storage Humidity 5 to 95%
    Operating Altitude -1,000 to 10,000' / -304.80 to 3048 m
    Storage Altitude -1,000 to 40,000' / -304.80 to 12,192 m


    Dimensions (W x H x D) 4 x 1 x 5.8" / 101.6 x 25.4 x 147.32 mm
    Weight 1.5 lb / 0.68 kg

    Packaging Info

    Package Weight 1.74 lb
    Box Dimensions (LxWxH) 7.9 x 6.05 x 2.45"
    WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to
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