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
Rectangular silver 3.5 inch enterprise hard drive with SAS connector and label showing model ST4000NM0023

Seagate Refurbished

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

SKU CH-XT6S-C8E00 MPN ST4000NM0023

Enterprise-grade 4 TB SAS drive with 7200 RPM and 128 MB cache for bulk-data storage

  • Total capacity4 TB
  • Interface typeSAS 6Gb/s
  • Form factor3.5 in (8.89 cm)
  • Flash memory typeSLC
  • Rotational speed7,200 RPM
  • Cache memory128 MB
  • Enterprise-grade 4TB capacity for bulk-data workloads
  • SAS 6Gb/s interface delivers consistent throughput
  • 7200 RPM spindle speed supports rapid data access
  • 128MB cache buffers heavy I/O operations
  • 16ms average latency keeps response times low

Enterprise capacity drive

The Seagate Constellation ES.3 ST4000NM0023 is a 4TB 3.5-inch internal hard drive built for enterprise storage arrays. It spins at 7200 RPM with a 128MB cache and connects through a SAS 6Gb/s interface. The drive is supplied in refurbished condition.

Suits bulk-data arrays, not desktop boot

This drive suits administrators expanding RAID sets, backup targets or cold-storage tiers where high capacity and sustained write endurance matter. It is not for builders who need a SATA-only controller, a 2.5-inch form factor, or a consumer warranty bundle.

SAS 6Gb/s interface decides fit

The SAS 6Gb/s interface is the single specification that determines compatibility; the drive requires a backplane or controller that supports SAS signalling. A SATA-only host bus adapter cannot negotiate the link, so the drive will not be recognised.

How it compares

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

Price $147.99
Pricier than about 60% 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 $37.00 per TB
Cheaper than about 74% 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 lineConstellation ES.3
Model nameST4000NM0023
Total capacity4 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Mean latency4.16 ms
Storage
Flash memory typeSLC
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 size178 × 140 × 38 mm

Questions about this item

Should I pick the 4TB model or a different capacity for my storage array?

This specific unit is the 4TB capacity; other capacities are separate part numbers not covered by this listing.

What does the 7200 RPM speed mean for daily workloads?

The spindle rotates at 7200 RPM with a 4.16ms average latency, delivering consistent throughput for bulk-data enterprise applications.

Will the SAS 6Gb/s interface limit performance on my controller?

The drive uses a SAS 6Gb/s interface, so the link caps at 6Gb/s; actual throughput depends on your controller and system configuration.

More in 3.5-Inch Internal Desktop HDDs

Similar items