Western Digital Ultrastar DC HC550 18TB Enterprise Hard Drive

Experience unparalleled storage capacity and enterprise-grade reliability with the Western Digital Ultrastar DC HC550 18TB HDD. Designed specifically for data center, cloud, and hyperscale environments, this 3.5-inch SATA drive features a massive 18TB storage capacity combined with HelioSeal helium-sealed technology and Energy-Assisted Magnetic Recording (EAMR) for enhanced areal density and energy efficiency.

• Advanced Helium-Sealed Design: Reduces power consumption and allows for denser disk packing to maximize capacity.
• Energy-Assisted Magnetic Recording (EAMR): Pioneering technology for increased writability and higher areal density across the nine-disk internal design.
• Triple Stage Actuator (TSA): Enhances precision in head positioning, delivering improved drive performance and reliability.
• Enterprise-Grade Performance: Spins at 7200 RPM and includes a large 512MB cache for fast data transfer with a 6 Gb/s SATA interface.
• Workload-Optimized: Rated for demanding 24x7 operation with workloads up to 550TB per year, ensuring long-term durability in server environments.
• Robust Reliability: MTBF of 2.5 million hours and backed by a 5-year limited warranty, guaranteeing data integrity and peace of mind.

For full specifications and additional technical details, visit the [Western Digital product page](https://www.westerndigital.com/en-au/products/internal-drives/data-center-drives/ultrastar-dc-hc550-hdd?sku=0F38458).