Seagate ST4000NM0023-cr 4TB SAS Enterprise HDD Renewed

Name: Seagate ST4000NM0023-cr 4TB SAS Enterprise HDD Renewed
Brand: Seagate
SKU: ST4000NM0023-cr

Overview

The Seagate Enterprise Capacity 3.5 HDD, part of the Constellation ES series, is designed for the demanding requirements of enterprise data centers, servers, and network-attached storage systems. With a 4TB capacity and 7200 RPM spindle speed, it delivers dependable sequential and sustained throughput for applications such as bulk data storage, backup repositories, and always-on file serving. The 128MB cache helps smooth data transfers and improve responsiveness during mixed workloads, while the SAS interface provides the reliability, error-handling, and multi-initiator support that enterprise environments demand.

This particular unit is certified refurbished, meaning it has undergone functionality testing, inspection, and cleaning to meet performance standards comparable to new drives. It ships with a minimum 90-day warranty, offering a cost-effective solution for expanding storage capacity in professional environments. However, potential buyers should be aware that the SAS interface is not interchangeable with SATA — a compatible SAS controller or host bus adapter is required. The 3.5-inch form factor fits standard server chassis and storage enclosures, making it a straightforward addition to existing enterprise infrastructure.

Key Features

This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com

Capacity: 6 TB

Interface: SAS 12Gb/s

Spin Speed: 7200 RPM

Cache: 128 MB, Format: 128MB

Specifications

Brand

Seagate

Model

ST4000NM0023-cr

Series

Enterprise Capacity 3.5 HDD (Constellation ES)

Capacity

4TB

Interface

SAS 6Gbps

Spindle Speed

7200 RPM

Cache

128MB

Form Factor

3.5 inch

Condition

Certified Refurbished

Warranty

Minimum 90-day

Similar Products

Other products from the same family that visitors often consider:

✓ Available

Pros & Cons

👍 Pros

SAS interface provides higher reliability and better multi-device scalability than SATA for server environments.
7200 RPM spindle speed with 128MB cache delivers consistent read/write performance for enterprise workloads.
3.5-inch form factor with 4TB capacity offers cost-effective bulk storage for data centers.
Certified refurbished status provides significant savings over new enterprise drives with warranty coverage.

👎 Cons

SAS interface requires a dedicated SAS controller or HBA, limiting use in standard consumer systems.
As a refurbished drive, it has prior usage history which may affect long-term lifespan compared to new units.
The minimum 90-day warranty is shorter than the typical 5-year warranty on new enterprise drives.
Mechanical hard drive speeds cannot compete with SSD performance for random I/O intensive workloads.
Product listing shows conflicting capacity information between the title (4TB) and features (6TB), so buyers should verify.

Frequently Asked Questions

What does "Certified Refurbished" mean for this Seagate enterprise drive?

The drive has been tested for full functionality, inspected, cleaned, and repackaged. It comes with a minimum 90-day warranty and ships with all relevant accessories, though it may arrive in a generic box.

What interface does this drive use, and is it compatible with consumer desktops?

This drive uses a SAS (Serial Attached SCSI) interface, which requires a SAS controller or HBA. It is not compatible with standard SATA ports found in consumer desktops without additional hardware.

What is the capacity and spindle speed of this drive?

The drive has a 4TB capacity with a 7200 RPM spindle speed and 128MB cache, designed for consistent enterprise-grade throughput.

What type of workloads is the Constellation ES series designed for?

The Seagate Enterprise Capacity 3.5 HDD (Constellation ES) is engineered for always-on enterprise environments including servers, NAS systems, and data centers that require high reliability and sustained performance.