0B26577 WD Ultrastar SSD400M 200GB SAS 2.5" Server SSD

Enterprise 2.5in SAS Hot-Swap SSD for 24x7 Server Storage with the 0B26577

The 0B26577 is a 2.5in hot-swap enterprise SAS SSD designed for always-on server bays where predictable I/O behavior and serviceability are priorities. Deployed as a boot/OS device or for read-heavy application volumes, it supports consistent access latency for modern CPU platforms and virtualized hosts by keeping core system and metadata reads off shared HDD tiers.

Built on MLC NAND, the 0B26577 targets balanced endurance for mixed random I/O with moderate write intensity, aligning well with virtualization and edge consolidation. Its SAS interface integrates cleanly with common RAID/HBA topologies, enabling dual-path capable backplanes and enterprise manageability in standard drive cages. With sequential throughput up to 495MB/s read and 385MB/s write, and up to 56,000/24,000 4K random read/write IOPS, the 0B26577 helps reduce boot storms and improves VM responsiveness while preserving PCIe slots for network and accelerator expansion. Low power draw at 1.7W idle and 5.5W active supports dense deployments with constrained thermal budgets.

Why Choose the 0B26577?

The 0B26577 delivers a practical density-to-performance ratio for 2.5in hot-swap server architectures, providing reliable SAS storage that scales from single-socket edge nodes to multi-host virtualization clusters. With a 2.0M hour MTBF rating and 24/7 duty qualification, the 0B26577 fits operational models that require controlled maintenance windows, consistent behavior under load, and straightforward replacement in front-access bays.

WD engineering emphasizes enterprise qualification, firmware validation, and predictable lifecycle characteristics to meet modern data centre standards for availability, compatibility, and continuous operation. For standardized SAS infrastructures, the 0B26577 supports disciplined platform design and repeatable deployment across fleets.

Key Applications:

• Server boot and OS volumes
• Read-heavy application storage
• Virtualization datastores
• Edge and branch server consolidation
• Metadata and log acceleration

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your deployment targets for the 0B26577, enabling fast alignment with your server platform and rollout scope. For larger rollouts, bulk order discount options help optimize fleet standardization without adding procurement complexity.