Seagate IronWolf Pro 20TB 3.5" 7200RPM SATA 6Gb/s NAS Internal HDD

Overview

The Seagate ST20000NE000 is a 20TB internal hard drive designed for enterprise and commercial NAS systems. It features a 3.5-inch form factor and spins at 7200 RPM, delivering the speed and capacity needed for demanding networked storage environments. With a 256MB cache and SATA 6Gb/s interface, it supports smooth data transfers even under heavy workloads, making it a strong choice for multi-bay NAS setups and RAID configurations.

Key features

• Uses Conventional Magnetic Recording (CMR) to ensure stable and consistent data writing, essential for reliable NAS performance
• Rotational vibration sensors reduce errors and maintain performance in systems with multiple drives operating simultaneously
• Rated for 300 terabytes written per year, supporting heavy and continuous data workloads
• IronWolf Health Management monitors drive health proactively to help prevent data loss and maintain uptime
• Mean time between failures (MTBF) of 1.2 million hours provides long-term reliability for 24/7 operation
• Includes three years of Rescue Data Recovery Service for added protection against unexpected data issues

Key specs

• Capacity: 20TB
• Form factor: 3.5-inch
• Spindle speed: 7200 RPM
• Cache: 256MB
• Interface: SATA 6Gb/s
• Workload rate: 300 TB/year
• MTBF: 1.2 million hours

Connectivity and compatibility

This drive connects via a SATA 6Gb/s interface, ensuring compatibility with most modern NAS enclosures and motherboards that support SATA connections. Its design fits standard 3.5-inch drive bays, making it easy to integrate into existing storage arrays or new NAS builds.

Performance and reliability

With a 7200 RPM spindle speed and a large 256MB cache, the drive delivers consistent performance for data-intensive tasks. The rotational vibration sensors help maintain stability in multi-drive environments, reducing the risk of errors and downtime. Its high MTBF rating and IronWolf Health Management tools provide confidence in long-term reliability, especially in always-on NAS systems.

Ideal uses and environments

This hard drive is well suited for small to medium business NAS systems, professional workstations, and commercial storage solutions that require large capacity and dependable performance. It handles continuous data access and heavy workloads, making it a solid option for environments where data integrity and uptime are critical.