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Silver 3.5 inch enterprise hard drive bare drive SAS 6Gb/s 4TB 7200 RPM 128MB cache

Seagate

Seagate Constellation ES.3 ST4000NM0023 4TB 7200 RPM 128MB SAS 6Gb/s 3.5" internal hard drive

SKU CH-HPBM-443R3 MPN ST4000NM0023

A 4 TB enterprise hard drive with a SAS 6Gb/s interface, 7200 RPM speed and 128 MB cache for 24 x 7 bulk data storage

  • Total capacity4 TB
  • Interface typeSAS 6Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory128 MB

Capacity 4TB

  • 4 TB capacity stores massive enterprise datasets
  • SAS 6Gb/s interface delivers predictable 7200 RPM throughput
  • 128 MB cache reduces average latency to 4.16 ms
  • RoHS-compliant design lowers power draw in 24 x 7 arrays
  • 5 inch form factor fits standard server bays

Enterprise bulk-data drive

The Seagate Constellation ES.3 ST4000NM0023 is a 4TB 3.5-inch internal hard drive built for 24x7 enterprise storage arrays. Its SAS 6Gb/s interface and 7200 RPM spindle suit servers and storage appliances that prioritise capacity density and predictable throughput.

SAS 6Gb/s interface requirement

This drive connects only to controllers or backplanes that support SAS 6Gb/s; it will not operate on SATA-only ports. Verify your host bus adapter or RAID card provides native SAS signalling before purchase.

Standard 3.5-inch bay install

The bare drive fits any 3.5-inch tray using the four bottom or side mounting holes; no rails or adapters are included. Common issues are forgetting a SAS-compatible cable and neglecting to enable the drive in the RAID BIOS after physical installation.

How it compares

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

Price $297.99
Pricier than about 82% 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 $74.50 per TB
Pricier than about 55% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineConstellation ES.3
Model nameST4000NM0023
Total capacity4 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Cache memory128 MB
Ports & slots
Interface typeSAS 6Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.85 mm
Maximum length147 mm
Shipping weight0.72 kg
Package size146 × 102 × 25 mm

Other versions of this model

3 more in the same range

Questions about this item

What does the 7200 RPM speed deliver in a live server?

Predictable 7200 RPM performance for 24 x 7 bulk-data workloads with 4.16ms average latency

What does the SAS 6Gb/s interface cap in practice?

The 6Gb/s SAS link sets the maximum host transfer rate; sustained throughput depends on the drive and workload

What physical space and mounting does the 3.5 inch drive need?

Fits a standard 3.5 inch bay; maximum dimensions are 147.00mm length, 101.85mm width, 26.10mm height

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