Western Digital UltraStar HC550 18TB 7200RPM SATA 512MB Cache 3.5 Inch Enterprise Drive

The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard disk drives (HDDs). The DC HC500 series is designed for public and private cloud environments where storage density and cost-efficient infrastructure is critical.

• The first HDD in the industry to harness Energy-Assisted Magnetic Recording (EAMR) technology improves writability and therefore increases areal density.
• The industry’s first Triple Stage Actuator (TSA) enhances head-positioning accuracy, delivering better performance and increased areal density.
• HelioSeal technology is the foundation for Western Digital’s high capacity HDDs and this is the 6th generation of HelioSeal product. Western Digital has shipped >65 million HelioSeal products to date.

• Capacity: 18TB
• Interface: SATA 6 Gb/s
• Data Buffer: 512MB
• RPM: 7200
• Operating temperature: 5 - 60 °C
• Storage temperature: -40 - 70 °C
• Height (maximum): 26.1mm
• Width (maximum): 101.6mm
• Length (maximum): 147mm
• Weight: 690g