The Ultrastar C10K1200 is the industry's highest-capacity 10,000 RPM, enterprise-class hard drive, delivering a massive 1.2TB of storage space. Providing a capacity extension to HGST's proven Ultrastar C10K900 product line, the 2.5-inch Ultrastar C10K1200 features a SAS 6Gb/s interface for reliable data throughput, a 64MB cache buffer for optimized read/write response time, and a fast 10K RPM rotational speed for reliable high-performance computing. All this, combined with the drive's low power, high capacity and high performance attributes, results in higher density servers, blades and network storage arrays that helps reduce space requirements, lowers cooling costs and improves total cost of ownership (TCO).