Description
Seagate Constellation 1TB 2.5-Inch SATA 6Gb/s 7200RPM Enterprise Hard Drive – ST91000640NS
1TB SFF 7200RPM 64MB Cache Nearline Server HDD
The Seagate ST91000640NS is a 1TB enterprise-class nearline hard drive built in a 2.5-inch small form factor (SFF). Designed specifically for servers and dense data center environments, this 7200RPM SATA 6Gb/s drive delivers high reliability, strong rotational vibration tolerance, and optimized firmware for multi-drive systems.
Important Compatibility Notice
This is a server-grade enterprise drive.
Not intended for laptops.
Designed for server and data center environments that support 2.5-inch SATA drives.
Key Features
1TB Storage Capacity
2.5-Inch Small Form Factor (SFF)
SATA III 6Gb/s Interface
7200 RPM Spindle Speed
64MB Cache
Enterprise Nearline Drive
Enhanced Rotational Vibration Tolerance
Multi-Drive Optimized Firmware
Optimized for Space-Constrained Data Centers
With its compact 2.5-inch design, this drive enables higher storage density in rack-mounted servers and storage arrays, allowing more drives to fit within the same footprint compared to 3.5-inch models.
Enterprise-Class Reliability
Built for 24×7 workloads, the Constellation series provides strong vibration tolerance and firmware tuned for multi-drive environments, improving system availability and consistent performance in high spindle-density configurations.
Performance & Value
The SATA 6Gb/s interface delivers economical 7200RPM enterprise performance, making it suitable for nearline storage, backup systems, and general-purpose enterprise applications.
Ideal Applications
Rack-mounted servers
Dense storage arrays
Data center nearline storage
Enterprise backup systems
High spindle-density environments
Technical Specifications
Brand
Seagate
Model
ST91000640NS
Series
Constellation
Capacity
1TB
Form Factor
2.5-Inch (SFF)
Interface
SATA 6Gb/s
Rotational Speed
7200 RPM
Cache
64MB
Installation Type
Internal
USD 