Seagate

The Seagate ST91000640SS is a 1 TB 2.5-inch SAS hard disk drive with a 6 Gb/s Serial Attached SCSI interface and 7200 RPM spindle speed, built for 24?7 enterprise use. It delivers reliable performance, excellent endurance, and compatibility with SAS-based server platforms.

Technical Specifications

• Model: ST91000640SS

• Capacity: 1 TB (Terabyte)

• Form Factor: 2.5-inch (Small Form Factor)

• Interface: SAS 6 Gb/s (Serial Attached SCSI Gen 2)

• Spindle Speed: 7200 RPM

• Cache / Buffer: 64 MB

• Sustained Transfer Rate: Up to ~115 MB/s (typical)

• Sector Size: 512 bytes (supports standard enterprise sector formats)

• Shock Tolerance: Operating ~70 g, non-operating ~400 g

• Vibration Tolerance: Enterprise vibration resistance for multi-drive systems

• Workload Rating: Designed for heavy enterprise duty cycles

• Hot-Swap Ready: Compatible with hot-plug SAS drive bays in servers and storage systems

• Use Cases: Enterprise servers, storage area networks (SAN), network attached storage (NAS), virtualization hosts, RAID arrays, cloud computing and data-center storage

This drive offers a balanced mix of capacity, reliability, and performance for enterprise environments and is commonly used in data centers and business storage solutions that demand continuous operation.