0B48710 WD Ultrastar 12TB SAS 512 MB 3.5" Server HDD

High-Density 3.5-inch Enterprise SAS HDD designed for datacenter duty cycles with the 0B48710

The 0B48710 is a 12TB WD Ultrastar datacenter-class 3.5-inch internal HDD engineered for continuous 24x7 operation in SAN/NAS tiers, RAID arrays, and scale-out storage nodes. As a SAS-attached device, the 0B48710 aligns with enterprise backplanes and dual-path storage designs where predictable latency, robust error recovery, and controller-managed availability are essential.

Built around a 7200 RPM platform with 512 MB cache, the 0B48710 targets throughput stability for sequential and mixed I/O typical of bulk repositories, backup/restore streams, and log-heavy services. Helium-filled mechanics reduce turbulence for better power efficiency and consistent head positioning, while TDMR technology supports sustained recording integrity at high areal density. The 0B48710 supports 4Kn with 512e emulation, simplifying integration into modern filesystems and RAID geometries while preserving compatibility where 512e is required. This architecture is optimized for high-capacity shelves and general-purpose server storage where cost-per-terabyte and operational resilience matter as much as raw IOPS.

Why Choose the 0B48710?

The 0B48710 delivers an enterprise-appropriate density-to-performance ratio for large fleets, enabling higher usable capacity per rack unit without compromising serviceability in SAS storage enclosures. With a 2.5M-hour MTBF design target and continuous duty-cycle focus, the 0B48710 supports scalable deployments that need consistent behavior under RAID rebuilds, background scrubs, and sustained ingestion workloads.

WD engineers Ultrastar platforms for datacenter reliability, prioritizing firmware tuning for multi-drive environments, controlled vibration behavior, and predictable lifecycle management. The design approach aligns with modern storage standards, including sector-format flexibility and security capabilities such as TCG Enterprise SSC encryption support.

Key Applications:

• SAN/NAS capacity tiers
• RAID arrays and HDD shelves
• Backup and archive repositories
• Scale-out storage nodes
• Log and content repositories

At Happyware - Server Hardware you benefit from non-binding offers tailored to your storage architecture and rollout plan, and you can extend the warranty up to 6 years to improve operational risk planning for long-lived capacity tiers using the 0B48710.