
Seagate ST91000640NS 1TB Constellation SATA 6Gb/s 2.5" HDD
Boost Your Storage Capacity with Enterprise-Class Reliability The Seagate Constellation ST91000640NS internal hard drive offers 1TB of storage with SATA 6Gb/s interface and a 64MB cache. Designed for enterprise environments, it delivers reliable performance for demanding applications. Seagate 1...
*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.
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Overview
Boost Your Storage Capacity with Enterprise-Class Reliability
The Seagate Constellation ST91000640NS internal hard drive offers 1TB of storage with SATA 6Gb/s interface and a 64MB cache. Designed for enterprise environments, it delivers reliable performance for demanding applications.
Seagate 1TB Constellation Hard Drive Specifications:
- Capacity: 1TB
- Interface: SATA 6Gb/s
- Cache: 64MB
- Form Factor: 2.5-inch
Key Features
Highest capacities and best reliability available in an SFF, 7200-RPM enterprise-class nearline drive
Best-in-class rotational vibration tolerance ensures unrivaled performance in high spindle-density applications, and multi-drive firmware maximizes system availability
SATA 6Gb/s for economical 7200-RPM performance
2.5-inch 1TB capacity-optimized drive for dense, space-constrained data centers allows you to store twice as much data in the same footprint
Not intended for laptops
Specifications
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Pros & Cons
👍 Pros
- Achieve high data density in a compact form factor with 1TB capacity in a 2.5-inch drive.
- Benefit from best-in-class rotational vibration tolerance, ensuring consistent performance in multi-drive enclosures.
- Experience economical yet strong 7200-RPM performance via the SATA 6Gb/s interface.
- Maximize system availability in high spindle-density applications with specialized multi-drive firmware.
- Utilize a nearline drive designed for enterprise-class environments, offering enhanced reliability.
👎 Cons
- This hard drive is explicitly stated as "Not intended for laptops," limiting its application to server or desktop environments.
- Being a 2.5-inch form factor, it may offer lower capacities compared to larger 3.5-inch enterprise drives.
- While 1TB is substantial, some enterprise applications may require even greater single-drive storage solutions.
- The 7200-RPM speed, while good for an HDD, is slower than modern SSDs for applications requiring high IOPS.
- Specific power consumption or noise levels for this enterprise drive are not provided.