0B32042 WD Ultrastar SSD800MH.B 400GB SAS 2.5" Server SSD

High-Performance 2.5-inch SAS Enterprise SSD for Mixed Workloads with the 0B32042

The 0B32042 is a 2.5-inch SAS enterprise SSD engineered for server-class storage tiers where consistent latency and predictable write behaviour are required. Integrated into standard hot-swap backplanes, the 0B32042 supports continuous 24x7 operation and delivers up to 1100 MB/s read and 765 MB/s write to reduce queue depth under mixed read/write pressure.

Built for modern SAS storage architectures, the 0B32042 aligns with dense rack server designs by providing high 4K IOPS throughput for transactional patterns, including up to 130K read and 110K write. Its endurance profile of 25 DWPD over 5 years (18,300 TBW) makes the 0B32042 suitable for write-intensive logging, caching layers, and database acceleration where sustained write amplification must be controlled. Power characteristics of 2.2W idle and 11W active support data centre efficiency targets without compromising serviceability.

Why Choose the 0B32042?

The 0B32042 provides an enterprise-ready balance of performance density and durability for SAS-based server fleets that need to scale IOPS without expanding chassis count. With 2,000,000 hours MTBF/MTTF and hot-swap integration, the 0B32042 supports maintenance windows, high-availability designs, and predictable lifecycle management across standardised storage nodes.

WD designs this Ultrastar-class SSD with an emphasis on sustained workload integrity, validation for always-on environments, and compatibility with established data centre operational standards. The platform focuses on reliable QoS under load while enabling secure deployment across regulated enterprise infrastructures.

Key Applications:

• Write-intensive logging and journaling
• Database acceleration and OLTP
• Read/write caching tiers
• Virtualised server storage pools
• High-availability SAS storage arrays

At Happyware - Server Hardware you benefit from non-binding offers tailored to your storage architecture and rollout plan, enabling efficient procurement for the 0B32042 in new deployments or refresh cycles. For long-lived platforms, an extended warranty up to 6 years helps align SSD lifecycle coverage with enterprise maintenance strategies.