WD Ultrastar DC SN861 6.4TB 2.5" PCIe 5.0 NVMe SSD

The Western Digital Ultrastar DC SN861 is a specialized solid-state drive engineered for high-demand data center environments, targeting AI, machine learning, and demanding analytics workloads. Utilizing the fast PCIe 5.0 x4 interface and NVMe 2.0 protocol, this drive provides maximum data throughput necessary for large-scale operations. It features a 6.4 TB capacity housed in the standard 2.5-inch U.2 form factor, optimizing it for integration within enterprise server racks.

Performance metrics include sequential read speeds up to 13,700 MB/s and sequential write speeds reaching 7,500 MB/s. This high bandwidth capability is paired with significant endurance, rated for 3 Drive Writes Per Day (DWPD), ensuring durability across its operational lifespan. Reliability features specific to the enterprise segment include Enhanced Power Loss Data Protection and comprehensive End-to-End Data Path Protection, critical for maintaining data integrity during system failures.

Designed for continuous operation, the drive achieves a Mean Time Between Failures (MTBF) of 2.5 million hours. Security measures include TCG hardware encryption for data protection. The DC SN861 maintains efficient power management with a specified maximum power draw of 5W, suitable for scaling within power-constrained data center infrastructure.

• Storage capacity of 6400 GB
• Form factor is 2.5-inch U.2
• Interface utilizes PCIe 5.0 x4 and NVMe 2.0
• Sequential read speed up to 13,700 MB/s
• Sequential write speed up to 7,500 MB/s
• Endurance rating of 3 Drive Writes Per Day
• Mean Time Between Failures (MTBF) of 2.5 million hours
• Targeted for AI, ML, and data center applications
• Includes Enhanced Power Loss Data Protection
• Supports TCG hardware encryption and security algorithms