0B26885 WD Ultrastar 7K4000 4TB SAS 64 MB 3.5" Server HDD

High-Performance 3.5-inch Enterprise SAS HDD for RAID Bulk Storage with the 0B26885

The 0B26885 is a WD Ultrastar 7K4000 3.5-inch enterprise HDD engineered for SAS-based servers and storage arrays where deterministic behavior, controlled latency, and consistent write characteristics are required. Built around CMR recording and a 7,200 RPM mechanical platform, the 0B26885 targets 24x7 duty-cycle deployments that prioritize predictable throughput for bulk storage, virtualization datastores, and general-purpose enterprise repositories.

With a single-port SAS interface and 512n sector format, the 0B26885 integrates cleanly into SAS backplanes and JBOD/RAID shelves, enabling straightforward alignment with enterprise controllers and expander topologies. The drive’s architecture supports dense capacity scaling in RAID HDD tiers while maintaining operational stability under sustained background activities such as rebuilds, patrol reads, and integrity scans, making the 0B26885 a practical choice for capacity-focused pools that must remain serviceable under load.

Why Choose the 0B26885?

The 0B26885 provides an efficient density-to-performance balance for SAS environments that standardize on enterprise backplanes and controller-managed RAID. By combining CMR with a proven 7,200 RPM platform and enterprise-class reliability metrics, the 0B26885 supports scalable capacity expansion without introducing the variability often seen in write-intensive maintenance windows, helping architects size predictable HDD tiers across multiple shelves.

WD designs Ultrastar enterprise drives with a focus on continuous operation, qualification for data centre duty cycles, and disciplined firmware behavior for array interoperability. This engineering approach aligns the 0B26885 with modern storage standards that emphasize compatibility, predictable error handling, and long-life service profiles.

Key Applications:

• SAS RAID capacity tiers
• Server and array bulk storage pools
• Backup-to-disk repositories
• General-purpose enterprise file services
• Log and archival datasets

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your SAS storage design around the 0B26885, enabling accurate bill-of-material planning for RAID shelves and server refresh projects. For larger rollouts, bulk order discount options support standardized deployments of the 0B26885 across multiple systems.