Seagate IronWolf Pro 3.5" 18TB, 7200 RPM, 256MB, 550 WRL, SATA III Hard Drive for NAS

The Seagate IronWolf Pro is an 18 TB internal hard drive engineered for continuous operation in multi-bay network-attached storage (NAS) systems. It utilizes Conventional Magnetic Recording (CMR) technology to ensure consistent write performance, which is a key consideration for RAID configurations. The drive incorporates AgileArray firmware, designed to optimize performance and reliability in multi-drive environments. This combination of technologies supports stable data handling for demanding, multi-user workloads commonly found in small to medium-sized business applications.

This 3.5-inch drive operates at a spindle speed of 7200 RPM and includes a 256 MB cache to facilitate efficient data access. Integrated rotational vibration (RV) sensors are present to mitigate vibration in multi-drive enclosures, which helps maintain consistent performance. The drive is rated for a 550 TB per year workload and supports 24/7 operation. It also features IronWolf Health Management for proactive drive status monitoring when used with compatible NAS systems, providing an additional layer of data management.

• 18 TB storage capacity
• 3.5-inch form factor
• SATA interface with a 6 Gbit/s transfer rate
• 7200 RPM spindle speed
• 256 MB buffer size
• Up to 285 MB/s sustained read and write speeds
• 2,500,000-hour Mean Time Between Failures (MTBF)
• 550 TB per year workload rate limit
• Includes rotational vibration (RV) sensors
• Designed for use in NAS systems
• 20 dB idle noise level
• 5.2 W power consumption at idle
• Dimensions of 101.85 mm x 146.99 mm x 26.11 mm
• Weighs 670 g