Inside is the Hitachi HDS724040ALE640 (0F14681) Retail Box. The Deskstar„¢ 7K4000 offers the industrys 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 & improving error correcting capabilities. Consult the Hitachi Advanced Format Technology Brief for more information. The 7K4000 also boasts a 6 Gb/s SATA interface & 64MB cache buffer to balance performance & 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. This 4 Tb Drive Stores approx 800, 000 6 Mpix Photos (approx 3.5MB Jpegs or 307 Hours of HD Videos or 1000000 MP3 Songs of 4 mins each at 128 Kbps Applications Consumer & commercial computers External storage PC gaming Video editing arrays