We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
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

  • Total capacity4 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory128 MB
  • 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.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $114.99
Typical for this category: the median of 4,938 items is $107.99.
Total capacity 4 TB
Higher than about 70% of the 2,372 comparable items (median 2 TB).
Price per TB $28.75 per TB
Cheaper than about 84% of the 2,365 comparable items (median $62.21 per TB).

New to this? Paying with USDT: TRC-20 or ERC-20 — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSeagate
Product lineIronWolf Pro
Model nameST4000NE0025
Total capacity4 TB
Recommended useEnterprise NAS Hard Drives
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Cache memory128 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.11 mm
Maximum width101.85 mm
Maximum length146.99 mm
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.

More in 3.5-Inch Internal Desktop HDDs

Similar items