0B34904 WD Ultrastar DC SS300 3.2TB SAS 2.5" Server SSD

Enterprise 2.5-inch SAS Hot-Swap SSD engineered for read-intensive tiers with the 0B34904

The 0B34904 is a 3.2TB 2.5-inch SAS enterprise SSD designed for servers that rely on consistent low-latency storage for boot volumes, application tiers, and high-availability caching. As a hot-swap drive, it integrates cleanly into SAS backplanes and RAID/HBA architectures, enabling serviceability without downtime while sustaining predictable performance under 24x7 duty cycles.

Built on MLC NAND, the 0B34904 targets read-intensive and mixed workloads where endurance and steady-state behaviour matter more than peak burst metrics. With up to 12Gb/s SAS connectivity, it supports modern storage topologies in dense rack systems, delivering strong sequential throughput and high 4K IOPS for virtualised datastores, metadata-heavy services, and log-centric database tiers. Power Loss Protection helps preserve in-flight data during unexpected outages, and AES-256 self-encrypting drive capability with Instant Secure Erase supports secure decommissioning and controlled reuse across regulated environments.

Why Choose the 0B34904?

The 0B34904 provides a balanced density-to-performance profile for enterprise SAS infrastructures, pairing 3 DWPD endurance with dependable 2.5M-hour MTBF reliability. It scales effectively across multi-drive arrays, supports operational continuity through hot-swap maintenance, and fits deployment models that standardise on SAS for consistent manageability, zoning, and controller feature sets.

WD designs this class of datacenter SSD with an emphasis on sustained performance, conservative qualification, and platform compatibility for common server backplanes and storage controllers. The engineering focus aligns with modern data centre requirements for encryption, serviceability, and predictable behaviour in always-on environments.

Key Applications:

• Server boot and OS volumes
• Read-intensive application tiers
• Virtualisation datastores
• Caching layers
• Database and log acceleration

At Happyware - Server Hardware you benefit from non-binding offers tailored to your storage rollout and an extended warranty option up to 6 years to protect long-lived 0B34904 deployments in production clusters.