Seagate ST1000NX0303

Overview

The Seagate ST1000NX0303 is a 1TB nearline hard drive designed for data centers and professional storage systems that require reliable capacity within a compact 2.5-inch form factor. It features a 6 Gb/s SATA interface and spins at 7200 RPM, delivering sustained transfer speeds up to 136 MB/s. This drive is built to handle continuous 24×7 operation with workloads up to 550 TB per year, making it well suited for private cloud clusters, content delivery nodes, and surveillance storage.

Key features

• Compact 2.5-inch size allows for higher rack density without sacrificing compatibility with standard SATA backplanes.
• 128 MB cache smooths burst workloads, improving responsiveness for virtual machines and accelerating database log writes during peak activity.
• PowerChoice technology reduces energy consumption during idle or low activity periods, helping to lower operational costs.
• Seagate Secure hardware-based data protection options provide an added layer of security for sensitive information.
• Engineered for durability with a mean time between failures (MTBF) of 1.4 million hours and backed by a 5-year limited warranty.
• Designed to sustain demanding enterprise workloads, supporting up to 550 TB of data written annually.

Key specs

• Capacity: 1 TB
• Form factor: 2.5 inch
• Interface: SATA 6 Gb/s
• Spindle speed: 7200 RPM
• Sustained transfer rate: up to 136 MB/s
• Cache size: 128 MB
• Power consumption: 3.51 W idle, 4.74 W reading
• Workload rate: up to 550 TB/year
• MTBF: 1.4 million hours
• Warranty: 5 years limited

Connectivity and compatibility

This drive integrates seamlessly with existing SATA backplanes, making it easy to upgrade or expand storage in servers and storage arrays without requiring specialized hardware. Its 2.5-inch form factor fits well in dense storage environments where space is at a premium, such as SAN shelves and hyperscale racks.

Performance and reliability

With a 7200 RPM spindle speed and a large 128 MB cache, the drive maintains steady data throughput and handles burst workloads efficiently. Its design supports continuous operation and high annual workload rates, ensuring dependable performance in enterprise environments. The robust MTBF rating and extended warranty provide confidence for long-term deployments.

Ideal uses and environments

The ST1000NX0303 is a strong choice for organizations needing reliable nearline storage in compact spaces. It fits well in branch-office servers, private cloud infrastructures, content delivery networks, and surveillance systems where consistent uptime and data integrity are critical. Its power-saving features also make it suitable for deployments where energy efficiency is a priority.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

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If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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