0B48713 WD Ultrastar DC HC555 18TB SAS 512 MB 3.5" Server HDD

Datacenter-Class 3.5in SAS Enterprise HDD engineered for high-density capacity tiers with the 0B48713

The 0B48713 is a WD Ultrastar DC HC555 18TB 3.5in internal enterprise HDD designed for server and storage array deployments where predictable latency, sustained throughput, and 24x7 duty cycles are mandatory. Integrated into modern x86 and storage-controller platforms, the 0B48713 leverages a 12Gb/s SAS architecture that supports dual-port paths for high availability, enabling resilient designs across redundant HBAs and multipath-enabled OS or array firmware.

To optimize capacity density without sacrificing operational stability, the 0B48713 uses helium-filled mechanics with TDMR/EAMR recording technology and a 7200RPM spindle, balancing sequential performance with controlled vibration behavior in multi-drive enclosures. A 512MB cache helps absorb burst writes and improve command reordering efficiency, while 4Kn support (with 512e compatibility) aligns with modern file systems and object storage layouts. For data governance, the 0B48713 implements Self-Encrypting Drive capabilities using TCG Enterprise SSC hardware encryption, reducing CPU overhead compared to software-based approaches.

Why Choose the 0B48713?

The 0B48713 provides a strong density-to-power profile for bulk capacity tiers, combining enterprise SAS manageability with datacenter reliability targets such as 2.5M hours MTBF. It is architecturally suited for scale-out nodes and high-bay shelves where consistent serviceability, dual-path connectivity, and encryption at rest must be standardized across large fleets using the 0B48713 as a common capacity building block.

WD engineers Ultrastar platforms for continuous operation, tight mechanical tolerances, and firmware behaviors tuned for multi-drive environments. The result is predictable integration with contemporary datacenter standards, from redundant SAS fabrics to lifecycle-managed storage pools.

Key Applications:

• Capacity storage tiers in SAN and NAS arrays
• Backup and recovery repositories
• Object storage and content archives
• Log retention and compliance storage
• Scale-out software-defined storage nodes

At Happyware - Server Hardware you benefit from non-binding offers tailored to your deployment, allowing you to standardize the 0B48713 across projects with clear technical alignment, and you can extend the warranty up to 6 years to protect long-lived storage investments.