Seagate IronWolf Pro 4TB 3.5" 7200RPM SATA III Internal NAS HDD

The Seagate ST4000NT001 is a 4TB internal hard drive designed specifically for NAS systems that require reliable, continuous operation. It fits into a 3.5-inch drive bay and connects via a SATA III interface, allowing data transfer speeds up to 250 MB/s. Running at 7200 rpm, this drive uses conventional magnetic recording to deliver consistent performance, making it well-suited for multi-bay, multi-user RAID setups where steady access and uptime are critical.

This drive is built to handle demanding workloads, supporting up to 550TB of data written per year and offering a mean time between failures of 2 million hours. Seagate’s AgileArray technology enhances its reliability by balancing the drive on two planes and including features like TLER and rotational vibration sensors, which help maintain performance and reduce errors in RAID environments. The 256MB cache further improves responsiveness during heavy use.

Whether you are managing a small business server, a home office NAS, or a professional multi-user storage system, this drive is designed to keep your data accessible and secure around the clock. It also comes with a 3-year Rescue Data Recovery Service and a 5-year limited warranty, providing extra peace of mind for your important files.

Highlights:

• 4TB capacity with 7200 rpm conventional magnetic recording
• SATA III 6 Gb/s interface paired with a 256MB cache for smooth data flow
• Up to 250 MB/s sustained transfer speeds for efficient file handling
• Supports heavy workloads up to 550TB per year with a 2 million hour MTBF
• AgileArray technology includes TLER and rotational vibration sensors to optimize RAID performance
• Includes 3-year Rescue Data Recovery Service for added data protection
• Backed by a 5-year limited warranty