ST4000NM0023 Seagate Constellation ES.3 4TB SAS 128 MB 3.5" Server HDD

Product line:

Constellation ES.3

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Happyware Article Number:

SH6H4192-812031

Manufacturer Number:

ST4000NM0023

Brand:

Seagate

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Description Technical details Warranty & Technical Support Reviews Bulk Deals

ST4000NM0023

High-Performance 3.5-inch Enterprise SAS HDD featuring CMR capacity tiers with the ST4000NM0023

The ST4000NM0023 is a 4TB, 7,200 RPM 3.5-inch internal SAS HDD engineered for predictable latency and sustained throughput in server and JBOD storage tiers. Integrated into SAS backplanes and RAID/HBA controller stacks, it supports multi-drive scalability where deterministic behavior and error recovery characteristics are critical to array stability and rebuild windows.

Designed around a conventional magnetic recording (CMR) media path and a 128MB cache, the ST4000NM0023 aligns well with general-purpose compute platforms where CPU and memory resources are allocated to virtualization, file services, and backup jobs rather than storage translation overhead. In SAS environments with PCIe-attached controllers, the drive enables dense expansion shelves and balanced I/O distribution, while Protection Information (PI) and enhanced ECC support end-to-end data integrity requirements common in enterprise storage architectures.

Why Choose the ST4000NM0023?

The ST4000NM0023 provides a practical density-to-performance profile for 24x7 deployments that need consistent SAS manageability, predictable CMR write behavior, and enterprise reliability characteristics. It is well suited for scaling capacity in mixed workloads where operational continuity, controlled error handling, and fleet standardization matter more than peak IOPS, enabling straightforward expansion planning across servers and external enclosures.

Seagate designs the Constellation ES.3 family with an engineering focus on continuous duty cycles, robust data path protection, and compatibility with modern datacenter serviceability expectations. The ST4000NM0023 reflects this approach through integrity features and power management support that help maintain efficiency targets in always-on racks.

Key Applications:

SAS server capacity expansion
JBOD and DAS storage tiers
Backup and archive pools
Virtualization and file services
RAID array rebuild and replacement

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your ST4000NM0023 deployment plan and bulk order discount options that support consistent drive population across racks and storage shelves.

Technical details of ST4000NM0023

Capacity:

4TB

Form Factor:

3.5"

Interface:

SAS

Rotations:

7200RPM

Cache:

128 MB

Noise Level Operation:

28dB

Noise Level Idle:

28dB

How long is the Warranty and how you can get technical support for ST4000NM0023

Warranty:	36 months (part)
RMA through customer:	yes
RMA Url:	https://www.seagate.com/support/warranty-and-replacements/
Description:	Items must be returned first for RMA. Advanced replacement is not available. No guaranteed delivery times specified. On-site service is not offered as standard. The warranty does not cover data loss. Regular data backups are recommended