The Deskstar™ 7K4000 offers the industry′s highest hard drive capacity at an enormous four terabytes of storage with 7200 RPM performance in a standard 3.5-inch form factor. This drive uses Advanced Format, which increases the sector size on HDDs from 512 bytes to 4096 (4K) bytes, thereby increasing capacities and improving error correcting capabilities. Consult the Hitachi Advanced Format Technology Brief for more information. The 7K4000 also boasts a 6Gb/s SATA interface and 64MB cache buffer to balance performance and capacity. The Deskstar 7K4000 is designed to help manufacturers deliver high-performance, high-capacity, power-efficient systems. Manufacturers planning to use the 4TB drive in systems should consult the Hitachi High Capacity Technology Brief.