WD Ultrastar DC HC520 12TB SAS 3.5″ 256MB HUH721212AL420y HDD Hard Disk Drive

The WD Ultrastar DC HC520 12TB SAS HDD delivers enterprise-grade storage with a 12TB capacity, 7200 RPM speed, and a 12Gb/s SAS interface for rapid data transfers in high-demand environments. Its 256MB cache optimizes performance for intensive workloads, while helium-sealed (HelioSeal) technology ensures energy efficiency, reduced turbulence, and enhanced durability. Built for data centers, it supports 550TB/year workload rates, offers 2.5M hours MTBF reliability, and features advanced vibration protection for stable RAID configurations. Ideal for cloud storage, big data, and mission-critical applications, it combines massive scalability, enterprise resilience, and power efficiency in a 3.5?? form factor.