0B34903 WD Ultrastar DC SS300 1.6TB SAS 2.5" Server SSD

High-Performance 2.5in SAS Datacenter SSD with secure hot-swap architecture using the 0B34903

The 0B34903 is a WD Ultrastar DC SS300 1.6TB 2.5in SAS SSD engineered for server boot tiers and cache layers where predictable latency and continuous duty cycles matter more than raw capacity. As a hot-swap capable device on a SAS backplane, the 0B34903 aligns with enterprise RAID and HBA designs, enabling serviceability without disrupting clustered hosts.

Built on MLC NAND and tuned for mixed 24/7 workloads, the 0B34903 delivers consistent sequential throughput up to 2100 MB/s read and 2050 MB/s write, supporting fast OS provisioning and read-intensive caching. Its endurance profile of 3 DWPD and 8500 TBW fits virtualization fleets where metadata, logs, and swap generate sustained write pressure. Power-loss protection helps preserve in-flight data, while AES-256 SED with Instant Secure Erase supports compliance-driven lifecycle handling across multi-tenant environments.

Why Choose the 0B34903?

The 0B34903 provides a balanced density-to-performance profile for 2.5in hot-swap bays, combining enterprise reliability with security controls that integrate cleanly into standard SAS storage domains. The 0B34903 is suited to scale-out deployment models where uniform boot media and cache devices simplify operations, spares management, and maintenance windows.

WD designs Ultrastar datacenter media for sustained availability, focusing on firmware stability, predictable behavior under load, and compatibility with modern server and storage standards. With a 2.5M-hour MTBF target and controlled power characteristics, the 0B34903 supports disciplined data centre capacity planning and uptime objectives.

Key Applications:

• Server boot volumes
• Read-intensive caching tiers
• Virtualization datastore acceleration
• Secure enterprise OS and utility partitions

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your rollout plan for the 0B34903, enabling fast standardization across clusters, and you can extend the warranty up to 6 years for additional security on your investment.