0B48711 WD Ultrastar DC HC555 14TB SAS 512 MB 3.5" Server HDD

Enterprise 3.5in SAS Nearline HDD engineered for secure capacity tiers with the 0B48711

The 0B48711 is a WD Ultrastar DC HC555 14TB internal 3.5in SAS nearline HDD designed for scale-out storage nodes and capacity-dense arrays that prioritise predictable latency over flash-class IOPS. The SAS interface supports enterprise backplanes and dual-controller architectures, aligning the 0B48711 with high-availability storage shelves where controlled queueing and robust error handling are required.

Built around helium-filled mechanics and 7200 RPM operation, the 0B48711 targets sustained bulk throughput while maintaining a balanced power profile for dense racks. Its 512MB cache and 4Kn native format with 512e emulation help storage architects standardise sector alignment across mixed fleets, reducing write-amplification risk in RAID and erasure-coded pools. WD’s TDMR and EAMR recording technologies are leveraged to extend areal density without compromising the operational characteristics expected in 24x7 nearline tiers, making the 0B48711 suitable for capacity tiering, backup repositories, and archival platforms.

Why Choose the 0B48711?

The 0B48711 provides a strong density-to-slot ratio for datacenter capacity layers while preserving enterprise reliability and predictable integration into SAS-based server and array designs. With TCG Enterprise SSC self-encrypting drive capability, the 0B48711 supports scalable security posture without adding host CPU overhead, enabling consistent deployment logic across multi-tenant environments and compliance-driven retention systems.

WD engineers the Ultrastar platform for continuous operation, serviceability, and fleet consistency within modern data centre standards. The 0B48711 reflects this approach through datacenter-class endurance targets and compatibility considerations for storage nodes, RAID controllers, and chassis backplanes commonly used in enterprise infrastructure.

Key Applications:

• Capacity tiering in enterprise storage arrays
• Scale-out object and file storage nodes
• Backup and archival repositories
• Secure data-at-rest deployments with SED

At Happyware - Server Hardware you benefit from non-binding offers tailored to your deployment plan for the 0B48711 and the option to extend the warranty up to 6 years to protect long-term storage investments.