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Silver 3.5 inch internal hard drive with green circuit board visible on underside

Seagate

Seagate Exos 7E8 ST4000NM002A 4TB 7200 RPM 256MB SATA 3.5" internal hard drive

SKU CH-39K7-0GYKF

Enterprise-class 4 TB 3.5″ SATA drive spinning at 7200 RPM with 256 MB cache and 4.16 ms latency

  • Total capacity4 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • Cache memory256 MB
  • Mean latency4.16 ms
  • Enterprise-grade reliability with 7200 RPM speed
  • 4TB capacity stores massive datasets efficiently
  • 256MB cache accelerates data access performance
  • SATA 6.0Gb/s interface ensures broad compatibility
  • PowerChoice technology reduces operating power consumption

Enterprise capacity and speed

This Seagate Exos 7E8 drive provides 4TB of storage on a SATA 6.0Gb/s interface. It spins at 7200 RPM with a 256MB cache and 4.16ms average latency. The 3.5 inch form factor fits standard enterprise bays. Advanced Write Caching uses 2M internal NOR flash for data integrity.

Suited for array workloads

The drive targets enterprise storage arrays and servers that demand sustained throughput. Humidity Sensor, SuperParity, Low Halogen, PowerChoice and PowerBalance features support dense, always-on deployments. Builders needing a different interface or a smaller physical size should consider other form factors.

SATA 6.0Gb/s interface decides fit

The single specification that determines compatibility is the SATA 6.0Gb/s interface. Your host controller or backplane must provide this exact connection. No other interface option exists on this model, so verify the host side before purchase.

How it compares

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

Price $670.99
Pricier than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 4 TB
Higher than about 70% of the 2,372 comparable items (median 2 TB).
Price per TB $167.75 per TB
Pricier than about 74% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineExos 7E8
Model nameST4000NM002A
Total capacity4 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Cache memory256 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.85 mm
Maximum length147 mm

Questions about this item

How does the 7200 RPM speed affect real-world performance in a desktop?

The 7200 RPM spindle speed combined with 256MB cache and 4.16ms average latency delivers responsive access times for multi-tasking and large-file workloads in a desktop system.

What does the SATA 6.0Gb/s interface mean for actual transfer speeds?

The SATA 6.0Gb/s interface provides the standard connection for this 3.5-inch drive, allowing it to communicate with the host controller at the full interface rate.

Will this 3.5-inch drive fit in my standard desktop drive bay?

Yes, it uses the standard 3.5-inch form factor with maximum dimensions of 147.00mm length, 101.85mm width, and 26.10mm height, matching typical desktop drive bays and mounting points.

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