0B48712 WD Ultrastar DC HC555 16TB SAS 512 MB 3.5" Server HDD

High-Density 3.5in Datacenter SAS HDD featuring secure, helium-sealed storage with the 0B48712

The 0B48712 is a WD Ultrastar DC HC555 16TB enterprise HDD engineered for capacity-first storage tiers where predictable latency, sustained throughput, and fleet reliability matter more than flash-level IOPS. As a 3.5in 7200RPM SAS drive, the 0B48712 aligns cleanly with dual-ported SAS backplanes in JBOD and RAID shelves, enabling multipath designs and straightforward integration into modern HBA and expander topologies.

Architecturally, the 0B48712 combines a 512MB cache with TDMR and EAMR recording to improve areal density while maintaining consistent read/write behavior under large sequential streams and mixed repository workloads. Support for 512e simplifies broad OS and controller compatibility, while the helium-filled mechanical design targets stable thermals and power efficiency for always-on racks. The 0B48712 also provides Self-Encrypting Drive capability with TCG Enterprise SSC compliance, allowing hardware-based data-at-rest protection without host CPU overhead, which is critical for regulated retention and secure decommissioning.

Why Choose the 0B48712?

The 0B48712 delivers an efficient density-to-power profile for scale-out capacity, helping reduce drive count per petabyte while preserving serviceability in standard 3.5in bays. With enterprise duty-cycle engineering and high-MTBF fleet suitability, the 0B48712 supports predictable operations in large arrays and simplifies lifecycle management across multi-shelf deployments.

WD designs Ultrastar datacenter drives with a focus on long service intervals, controlled vibration characteristics, and compatibility with established storage ecosystems, supporting data centre standards for continuous operation, security governance, and consistent qualification across platforms.

Key Applications:

• JBOD and RAID capacity shelves
• Object storage and content repositories
• Backup and archive tiers
• Security-sensitive retention storage

At Happyware - Server Hardware you benefit from non-binding offers tailored to your storage architecture and rollout timeline, helping you standardise on the 0B48712 across shelves and fleets. For larger deployments, bulk order discount options support cost-controlled scaling without compromising on enterprise procurement requirements.