0B31077 WD Ultrastar SSD1600MR 800GB SAS 2.5" Server SSD

High-Performance 2.5in SAS Enterprise SSD featuring SED security and RAID-ready endurance with the 0B31077

The 0B31077 is an internal WD Ultrastar SSD1600MR engineered for server and storage platforms that require predictable low-latency I/O over 12Gb/s SAS, with hot-swap serviceability for continuous operations. Built on MLC NAND, the 0B31077 targets read-intensive database and virtualization tiers where consistent 4K performance and queue-depth stability matter more than peak burst behavior.

In SAS backplanes and shared-storage architectures, the 0B31077 integrates cleanly into dual-path, multi-initiator environments and supports enterprise RAID layouts with sustained throughput up to 1100 MB/s read and 700 MB/s write. The 0B31077 provides 800GB of capacity with 2 DWPD endurance for 5 years (2920 TBW), enabling boot, cache, and mixed transactional server storage without compromising wear margins. With encryption enabled as a Self-Encrypting Drive, the 0B31077 helps align data-at-rest controls with operational simplicity in rack and blade deployments.

Why Choose the 0B31077?

The 0B31077 delivers an efficient density-to-performance profile for 2.5in hot-swap bays, combining SAS availability characteristics with endurance suitable for 24x7 RAID tiers. For architects standardizing on SAS arrays, the 0B31077 offers scalable deployment logic: consistent behavior across drive populations, straightforward service procedures, and reliability designed for always-on data center duty cycles.

WD engineers the Ultrastar portfolio around measurable uptime and lifecycle stability, with component screening and firmware validation aligned to modern data center operating conditions. With 2.0 million hours MTBF and power characteristics optimized for steady-state operation, the 0B31077 supports predictable platform thermals and fleet management practices.

Key Applications:

• Read-intensive databases
• Server virtualization datastores
• Boot and cache tiers
• Mixed transactional storage
• 24x7 SAS arrays and RAID volumes

At Happyware - Server Hardware you benefit from non-binding offers tailored to your storage architecture and rollout schedule, and you can extend the warranty up to 6 years to protect long-lived enterprise deployments of the 0B31077.