WD Ultrastar 12TB DC HC520 | Enterprise Hard Drive | SATA 6Gb/s, 256MB Cache, RPM@7200, Up to 273MB/s Transfer Speed | MODEL NO-HUH721212ALE604/0F30146

WD Ultrastar 12TB DC HC520 is a 12TB enterprise-class hard drive built for modern data centers, cloud storage platforms, and large-scale IT deployments. Part of the HC500 series, it combines high capacity with exceptional power efficiency and reliability. Formerly known as the Ultrastar He12, the HC520 supports workloads up to 550TB per year and uses proven perpendicular magnetic recording (PMR) technology for seamless integration into existing infrastructure.

Its advanced 8-disk design, enabled by fourth-generation HelioSeal® technology, provides 20% more capacity than the previous 7-disk models, while maintaining a low power profile to help organizations meet environmental and cost-efficiency goals. The helium-filled drive also minimizes turbulence and vibration, enhancing overall performance and reliability.

With a mean time between failures (MTBF) of 2.5 million hours, the HC520 is among the most dependable HDDs available. Available in both SAS and SATA interfaces, it’s designed to support mission-critical applications in cloud, big data, and traditional enterprise environments.

Backed by Western Digital’s legacy of innovation and quality, the WD Ultrastar 12TB DC HC520 offers exceptional value through its high capacity, low energy use, and rock-solid reliability—making it a smart investment for businesses facing exponential data growth.