Seagate IronWolf Pro 3.5" 4TB, 7200 RPM, 256MB, SATA III Hard Drive, for NAS

The Seagate IronWolf Pro is a 4 TB hard drive engineered for use in commercial and enterprise network-attached storage (NAS) systems. It is constructed for continuous 24/7 operation and supports a high workload rate suitable for demanding multi-user environments. Integrated Rotational Vibration (RV) sensors help maintain performance and reliability in multi-bay NAS enclosures by mitigating vibration from adjacent drives. Its firmware is optimized for RAID configurations, contributing to data integrity and consistent throughput in multi-drive arrays.

This drive utilizes a SATA 6 Gb/s interface and features a spindle speed of 7200 RPM, which facilitates rapid data access for server applications. A 256 MB cache is included to assist in optimizing read and write operations for frequently accessed data. The unit is rated with a Mean Time Between Failures (MTBF) of 2 million hours, indicating a design focus on long-term dependability under constant use. It also incorporates S.M.A.R.T. technology for actively monitoring drive health and anticipating potential component issues.

• 4 TB storage capacity
• 3.5-inch form factor
• SATA interface with 6 Gb/s transfer rate
• 7200 RPM rotational speed
• 256 MB cache buffer
• Rated for 550 TB per year workload
• 2,000,000-hour Mean Time Between Failures (MTBF)
• Supports 24/7 continuous operation
• Equipped with rotational vibration sensors
• Compatible with NAS systems
• Dimensions of 101.85 x 146.99 x 26.11 mm
• Weighs 650 g