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Silver 3.5 inch internal hard drive with exposed circuit board, bare drive packaging

Seagate

Seagate IronWolf Pro 4TB 7200 RPM 256MB CMR SATA 3.5" internal hard drive ST4000NE001

SKU CH-8PBN-F583K MPN ST4000NE001

4 TB CMR hard drive built for 24×7 NAS use with 7200 RPM, 256 MB cache and AgileArray RAID optimisation

  • PackagingBare Drive
  • InterfaceSATA 6.0Gb/s
  • Capacity4TB
  • RPM7200 RPM
  • Cache256MB
  • Average Latency4.16ms

Options 4TB

  • Optimised for multi-bay NAS with AgileArray balancing
  • Consistent 24×7 performance from all-CMR recording technology
  • High workload tolerance rated at 300 TB per year
  • IronWolf Health Management monitors and protects drive health
  • 256 MB cache and 7200 RPM for fast data access

4 TB NAS Drive with AgileArray

The Seagate IronWolf Pro ST4000NE001 is a 3.5-inch internal hard drive built for 24×7 operation in multi-bay NAS enclosures. It uses conventional magnetic recording and spins at 7200 RPM with a 256 MB cache on a SATA 6.0 Gb/s interface. AgileArray firmware adds dual-plane balancing, time-limited error recovery and rotational vibration sensors to sustain RAID performance.

Suits multi-bay NAS; not for single-drive desktops

This drive targets business and home NAS systems that run continuously and benefit from rotational vibration sensing and RAID-optimised firmware. Builders assembling a single-drive workstation or a USB external enclosure will not use the AgileArray features or the 300 TB per year workload rating.

300 TB per year workload rating

The 300 TB annual workload rating is the specification that defines whether this drive matches the intended write volume. Environments that exceed this threshold should consider higher-rated enterprise drives, while lighter workloads can use standard NAS drives with lower ratings.

Highlights

  • Optimised for multi-bay NAS with AgileArray balancing
  • Consistent 24×7 performance from all-CMR recording technology
  • High workload tolerance rated at 300 TB per year
  • IronWolf Health Management monitors and protects drive health
  • 256 MB cache and 7200 RPM for fast data access

Specifications

BrandSeagate
SeriesIronWolf Pro
ModelST4000NE001
PackagingBare Drive
InterfaceSATA 6.0Gb/s
Capacity4TB
RPM7200 RPM
Cache256MB
Average Latency4.16ms
FeaturesOptimized for NAS with AgileArray. AgileArray enables dual-plane balancing and RAID optimization in multi-bay environments, with the most advanced power management possible.
Actively protect your NAS with IronWolf Health Management focusing on prevention, intervention, and recovery.
High performance means no lag time or downtime for users during workload traffic for the NAS. Seagate leads the competition with the highest-performing NAS drive portfolio.
Seagate Rescue Data Recovery. IronWolf Pro comes with extra peace of mind for any mechanical, accidental, or natural disaster. With a
UsageEnterprise NAS Hard Drives
Form Factor3.5"
Height (maximum)26.11mm
Width (maximum)101.85mm
Length (maximum)146.99mm
Shipping weight0.65 kg
Package size164 × 138 × 37 mm

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Questions about this item

What does the SATA 6.0Gb/s interface cap in practice?

The SATA 6.0Gb/s link sets the maximum bus throughput; sustained sequential speeds from the 7200 RPM platters typically reach the 256MB cache before the bus becomes the bottleneck.

What physical space does the 3.5" drive need to fit in a NAS bay?

The unit measures 146.99mm long, 101.85mm wide and 26.11mm high, so the bay must accommodate those maximum dimensions and the standard SATA data and power connectors at the rear.

How is the drive installed and which step do builders often miss?

Slide the 3.5" drive into the tray, secure it with the four side screws, attach both SATA data and power cables, then enable the AgileArray features in the NAS firmware so TLER and RV sensor tuning take effect.

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