Seagate Exos X16 16TB 3.5" 7200 RPM Internal SATA HDD

Overview

The Seagate ST16000NM003G is a 3.5 inch internal SATA hard drive designed to deliver 16TB of storage capacity for servers, storage arrays, and NAS appliances that require reliable, continuous operation. Spinning at 7200 RPM and equipped with a 256MB cache, it supports high transfer rates that help keep backup windows short and maintain responsiveness during read-intensive tasks. This drive is well suited for data center environments, content creators, and researchers managing large-scale archives or analytic datasets.

Key features

• Large 16TB capacity enables dense storage pools and supports multi-petabyte scale-out architectures.
• 7200 RPM spindle speed combined with a 256MB cache ensures steady performance under demanding workloads.
• SATA 6Gb/s interface allows straightforward integration with existing servers and direct-attach enclosures without additional hardware.
• Helium-sealed design reduces internal friction and turbulence, leading to lower power consumption and stable operating temperatures.
• PowerBalance technology fine-tunes the balance between performance and energy efficiency, helping reduce operational costs in large deployments.
• Seagate Secure hardware encryption protects sensitive data and enables quick, cryptographic erase for secure drive retirement or repurposing.
• Enterprise-grade reliability with a 2.5 million hour mean time between failures (MTBF) and a five-year limited warranty.

Key specs

• Capacity: 16TB
• Form factor: 3.5 inch
• Spindle speed: 7200 RPM
• Cache size: 256MB
• Interface: SATA 6Gb/s
• Mean time between failures (MTBF): 2.5 million hours
• Warranty: five-year limited
• Power technology: helium-sealed with PowerBalance optimization

Connectivity and compatibility

This hard drive uses a standard SATA 6Gb/s interface, making it compatible with a wide range of servers, storage arrays, and NAS enclosures that support SATA connections. Its plug-and-play nature means it can be easily integrated into existing infrastructure without requiring specialized cabling or controllers.

Performance and reliability

The combination of a 7200 RPM spindle speed and a large 256MB cache helps maintain consistent data transfer rates, which is critical for environments with heavy read and write operations. The helium-filled design reduces internal friction and heat, contributing to longer drive life and lower power consumption. With a 2.5 million hour MTBF rating and a robust five-year warranty, this drive is built to handle demanding enterprise workloads with confidence.

Ideal uses and environments

This drive fits well in data centers and enterprise storage solutions where maximizing capacity per rack unit is essential. It is a strong choice for organizations managing large video archives, cloud storage expansions, or backup repositories that require both high capacity and dependable performance. Its energy-efficient design also makes it suitable for hyperscale operators focused on reducing power costs without sacrificing throughput.