Seagate 4TB Ironwolf NAS Internal Hard Drive, SATA 6Gb/s 3.5'', 256MB Cache, 600 MBps Data Transfer Rate, ???5900 RPM, Serial ATA-600 Interface, 256 Megabyte Buffer Size | ST4000VN006 3year warranty

The Seagate IronWolf 4TB (ST4000VN006) is designed to outperform standard desktop drives in always-on, networked environments. While consumer drives are built for intermittent use, the IronWolf series is rigorously tested for the thermal and mechanical stresses of a 24/7 NAS enclosure. It serves as an ideal foundation for centralized backups, media streaming (Plex), and private cloud storage, ensuring your data is always accessible when you need it.

Performance: AgileArray™ and CMR Technology
Performance in a NAS system relies on specialized firmware. AgileArray™ technology optimizes the ST4000VN006 for RAID configurations by focusing on drive balancing, RAID optimization, and advanced power management. By utilizing CMR (Conventional Magnetic Recording), Seagate guarantees the stable write performance and faster RAID rebuild times required for professional-grade storage, avoiding the bottlenecks found in SMR-based consumer drives.