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Silver 3.5 inch bare hard drive with green label, circuit board visible on bottom

Seagate

Seagate IronWolf Pro 4TB 7200 RPM 128MB SATA 3.5" ST4000NE0025

SKU CH-3004-C12AW MPN ST4000NE0025

A 4TB 7200 RPM SATA hard drive built for 24×7 NAS arrays, featuring AgileArray RAID optimisation, RV sensors, 128MB cache and a 300TB yearly workload rating

  • PackagingBare Drive
  • InterfaceSATA 6.0Gb/s
  • Capacity4TB
  • RPM7200 RPM
  • Cache128MB
  • Average Latency4.16ms
  • Designed for multi-bay NAS with AgileArray dual-plane balancing and RAID optimization
  • 300TB yearly workload rate supports demanding 24x7 always-on environments
  • IronWolf Health Management actively monitors and protects NAS storage integrity
  • Bundled Rescue Data Recovery covers mechanical, accidental or natural disasters for 2 years with 90% in-house success rate
  • 2M hours MTBF and 7200 RPM performance deliver enterprise-class reliability

IronWolf Pro 4TB SATA NAS drive

The Seagate IronWolf Pro ST4000NE0025 is a 4TB 3.5-inch internal hard drive built for network-attached storage. It spins at 7200 RPM with a 128MB cache and connects via a SATA 6.0Gb/s interface. AgileArray firmware adds dual-plane balancing and RAID optimisation for multi-bay enclosures.

Suited for multi-bay NAS arrays needing 24×7

This drive targets RAID and multi-bay NAS deployments that run continuously. Rotational vibration sensors and a 300TB per year workload rating support heavy write cycles. IronWolf Health Management monitors drive status. Builders needing a different physical interface or smaller form factor should select another class of storage.

300TB per year workload rating

The published workload rate of 300TB per year is the key figure for deciding whether this drive matches the write intensity of the planned NAS workload. A 1.2M hour MTBF and the bundled two-year Rescue Data Recovery service back the endurance claim.

Highlights

  • Designed for multi-bay NAS with AgileArray dual-plane balancing and RAID optimization
  • 300TB yearly workload rate supports demanding 24x7 always-on environments
  • IronWolf Health Management actively monitors and protects NAS storage integrity
  • Bundled Rescue Data Recovery covers mechanical, accidental or natural disasters for 2 years with 90% in-house success rate
  • 2M hours MTBF and 7200 RPM performance deliver enterprise-class reliability

Specifications

BrandSeagate
SeriesIronWolf Pro
ModelST4000NE0025
PackagingBare Drive
InterfaceSATA 6.0Gb/s
Capacity4TB
RPM7200 RPM
Cache128MB
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 weight0.68 kg
Package size152 × 119 × 36 mm

Questions about this item

How do I install the 3.5" SATA drive in my NAS and what step is often missed?

Mount the drive using the 146.99mm length and 101.85mm width screw points, connect the SATA 6.0Gb/s data and power cables, then enable AgileArray in the NAS firmware for dual-plane balancing and RAID optimisation.

What maintenance or replacement will the ST4000NE0025 need over its service life?

The drive is rated for a 300TB per year workload and 1.2M hours MTBF; plan replacement when SMART attributes approach threshold or after five years of continuous 24x7 operation.

What limit appears first during sustained heavy writes on this IronWolf Pro?

The 300TB annual workload rating is the first constraint; sustained writes beyond that rate can reduce the 1.2M hour MTBF and trigger earlier replacement.

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