Western Digital Ultrastar DC SN655 15.36TB U.3 PCIe NVMe SSD

The Western Digital Ultrastar DC SN655 is an enterprise-class solid-state drive specifically engineered for high-capacity cloud, data center, and scale-out workloads. It provides 15.36 TB of storage capacity utilizing a U.3 15 mm form factor designed to fit existing 2.5-inch infrastructure. Data transfer is managed through a robust PCIe 4.0 interface utilizing NVMe 1.4b, supporting high sequential reading rates up to 6800 MB/s and sequential writing rates up to 3700 MB/s.

Reliability for sustained, continuous operation is implemented through BiCS5 TLC 3D NAND technology, offering an endurance rating of 1 Drive Write Per Day (DWPD). This drive incorporates critical enterprise features such as end-to-end data path protection and enhanced power loss protection (PLP) to maintain data integrity during unexpected events. Furthermore, the design supports hardware-based AES-256 encryption and dual-port redundancy, capabilities required for high-availability server deployments and demanding data analytics processes.

• 15.36 TB nominal storage capacity
• U.3 15 mm form factor compatible with server systems
• PCIe Gen4 interface utilizing NVMe 1.4b protocol
• 1,100,000 Random Read IOPS (100% Span)
• 135,000 Random Write IOPS (100% Span)
• Mean Time Between Failures (MTBF) of 2.5 million hours
• Hardware encryption compliant with TCG Opal security standards
• Dimensions: 15 mm height, 69.85 mm width, 100.45 mm depth