WD Ultrastar DC HC560 20TB 3.5-inch SAS 12Gb/s 7200 RPM Enterprise Nearline HDD

The WD Ultrastar DC HC560 is a 20TB 3.5-inch enterprise nearline hard drive built on Western Digital's ninth-generation HelioSeal platform, utilizing helium-sealed enclosure technology to reduce internal turbulence and enable higher areal density across nine magnetic platters. The drive connects via SAS 12Gb/s interface, delivering sustained transfer rates suited to high-throughput storage infrastructures, while spinning at 7200 RPM to balance sequential performance with energy efficiency. A 512MB cache buffer supports burst workloads, and the drive is rated for up to 2.5 million hours MTBF, reflecting its engineering for continuous 24/7 operation in demanding datacenter environments.

The HC560 is engineered with Advanced Format (512e/4Kn) sector technology and supports rotational vibration (RV) compensation, making it suitable for high-density multi-drive enclosures where vibration from adjacent drives can degrade performance. The drive carries a 550TB per year workload rating, positioning it as a nearline storage device designed for large-scale sequential and mixed workloads rather than transactional IOPS-heavy applications. PowerChoice and PowerControl technologies provide granular power state management, enabling operators to reduce energy consumption during idle periods at scale.

With its combination of 20TB raw capacity, enterprise-grade SAS connectivity, and helium-sealed mechanical design, the Ultrastar DC HC560 addresses the storage density requirements of modern hyperscale deployments, object storage systems, AI training dataset repositories, and large-scale backup and archival infrastructures. The drive is compatible with leading storage platforms and qualifies under Western Digital's rigorous enterprise validation program, making it a reliable building block for petabyte-scale storage architectures across datacenter, cloud, and AI/ML environments served globally including UAE, GCC, EMEA, and APAC regions.

Ideal for

• Hyperscale and cloud datacenter object storage deployments requiring maximum capacity per rack unit
• AI and machine learning training dataset storage, providing high-capacity sequential read throughput for large model ingestion pipelines
• Large-scale backup and disaster recovery repositories where high per-drive capacity reduces hardware footprint and power consumption
• High-density NAS and SAN storage arrays for enterprise content repositories, media archives, and genomics data lakes
• Surveillance and video analytics platforms requiring continuous write workloads across large multi-drive enclosures
• Cold and warm tier storage in tiered storage architectures, absorbing capacity overflow from higher-performance NVMe or SAS SSD tiers

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.