0TS1954 WD Ultrastar DC SN640 3.2TB U.2 NVMe 2.5" Server SSD

High-Density U.2 NVMe Data Center SSD built for read-intensive tiers with the 0TS1954

The 0TS1954 is a WD Ultrastar DC SN640 2.5-inch U.2 NVMe SSD designed to modernize server storage on PCIe-based backplanes where low latency and predictable throughput are critical. As a hot-swap enterprise drive, 0TS1954 integrates cleanly into 24/7 platforms supporting virtualization clusters and database caching tiers, balancing read-intensive performance with mixed-use capability for consolidated infrastructures.

Built on TLC NAND with enterprise firmware, 0TS1954 targets high queue-depth workloads with up to 3300 MB/s sequential read and up to 468k 4K read IOPS while maintaining controlled write behavior for steady-state operation. The 3.2TB capacity and 2 DWPD endurance profile enable dense NVMe tiers where PCIe lanes are optimized for parallelism, and features such as Power Loss Protection protect in-flight data during unexpected outages. For security-driven deployments, 0TS1954 supports 256-bit AES encryption and Instant Secure Erase to streamline decommissioning workflows and meet data handling requirements.

Why Choose the 0TS1954?

The 0TS1954 provides a practical density-to-performance ratio for U.2 NVMe bays, enabling scale-out storage performance without redesigning chassis layouts. With enterprise availability characteristics, hot-swap serviceability, and a 2.0M-hour MTBF design target, 0TS1954 supports predictable lifecycle planning in multi-node environments while keeping latency-sensitive tiers close to compute.

WD engineers the Ultrastar SSD portfolio for sustained data center duty, emphasizing firmware consistency, power-fail resilience, and secure feature sets aligned to modern rack standards. This approach helps administrators integrate NVMe acceleration while maintaining operational control across deployment, monitoring, and retirement phases.

Key Applications:

• Virtualization datastores
• Database caching tiers
• Read-intensive analytics
• High-IOPS web infrastructure
• Secure multi-tenant storage

At Happyware - Server Hardware you benefit from non-binding offers tailored to your configuration and rollout schedule, helping you standardize on 0TS1954 across clusters with procurement clarity. For long-lived platforms, an extended warranty of up to 6 years can be added to protect enterprise refresh cycles.