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Silver 3.5 inch bare hard drive with SAS connector visible

Seagate

Seagate ST4000NM0014 4TB 7200 RPM SAS 12Gb/s 128MB 3.5" internal hard drive

SKU CH-D665-6T36Q MPN ST4000NM0014

Enterprise 4TB drive with SAS 12Gb/s interface, 7200 RPM and 128MB cache for high-capacity storage

  • Total capacity4 TB
  • Interface typeSAS 12Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory128 MB
  • 4TB capacity stores large enterprise datasets
  • SAS 12Gb/s interface enables fast data transfers
  • 7200 RPM spindle speed delivers responsive random performance
  • 128MB cache buffers intensive workloads efficiently
  • 5-inch form factor fits standard drive bays

Enterprise SAS storage for bulk data

The Seagate ST4000NM0014 is a 4TB enterprise-class hard drive built for high-capacity density RAID arrays and bulk-data applications. It uses a SAS 12Gb/s interface and spins at 7200 RPM with a 128MB cache. The 3.5-inch form factor fits standard enterprise drive bays and backplanes.

Thermals noise and power profile

As a mechanical enterprise drive, it generates typical operational heat and audible seek noise under sustained workloads. The 7200 RPM spindle speed and SAS interface draw consistent power during random and sequential access patterns. System integrators should provide adequate airflow in multi-drive enclosures to maintain reliable operating temperatures.

Bare drive packaging implications

The drive ships as a bare unit without cables, mounting brackets, or software utilities in the box. Deployment requires a compatible SAS controller or backplane and appropriate cabling sourced separately. RAID configuration and management depend entirely on the host controller or storage appliance firmware used in the target system.

How it compares

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

Price $241.99
Pricier than about 75% 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 $60.50 per TB
Typical for this category: the median of 2,365 items is $62.21 per TB.

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Specifications

Product
Brand nameSeagate
Product lineEnterprise Capacity 3.5
Model nameST4000NM0014
Total capacity4 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Cache memory128 MB
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.85 mm
Maximum length147 mm
Shipping weight1.36 kg
Package size178 × 127 × 25 mm

Questions about this item

How do I install this 3.5" SAS 12Gb/s drive and what step is often missed?

Mount the drive using standard 3.5" screw holes, connect the SAS data and power cables, then configure the drive in your RAID controller BIOS before the OS sees it.

What maintenance or replacement will this 4TB Enterprise Capacity drive need later?

Plan for eventual replacement after the rated workload limit; monitor SMART reallocated-sector counts and run periodic surface scans to catch degradation early.

What limit appears first on this 7200 RPM drive during sustained writes?

The 128MB cache fills quickly under heavy streaming writes, so sustained throughput drops to the native media transfer rate once the buffer is saturated.

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