Seagate ST91000640NS 1TB Constellation SATA 6Gb/s 64MB Cache 2.5-Inch Internal Bare Drive

Seagate ST91000640NS Constellation.2

1TB 2.5" Enterprise Hard Disk Drive - SATA 6Gb/s - 7200RPM - 64MB Cache

The Seagate ST91000640NS Constellation.2 is a high-density enterprise hard drive, offering 1TB of storage in a compact 2.5‑inch form factor. With its SATA 6Gb/s interface, 7200RPM spindle speed, and 64MB cache, it delivers the performance and reliability required for servers, blade systems, and data center storage arrays where power efficiency and space utilization matter.

As part of the Constellation.2 family, this drive is built for consistent 24×7 workloads and features Seagate’s enterprise innovations including rotational vibration tolerance, PowerChoice energy management, and high workload ratings. Its 2.5" design enables greater rack density, lowering TCO while maintaining data integrity across mission‑critical applications.

Features :

The ST91000640NS combines large storage capacity with the durability of enterprise components. With up to 1.4 million hours MTBF, advanced error correction, and 24×7 reliability, it supports continuous workloads in demanding environments. The drive’s 64MB cache and SATA 6Gb/s throughput ensure consistent sequential and random performance for transactional and virtualized setups.

Advanced Options :

This drive is optimized for multi‑drive storage arrays, providing enterprise vibration resistance (RV sensors) and firmware tuned for RAID performance. The Seagate PowerChoice feature helps reduce energy costs by enabling intelligent power management modes, while optional Seagate Secure models provide hardware‑based data security.