The Western Digital Caviar Blue 1TB hard drive offers performance, reliability, large storage capacity, and the new 6 Gb/s Serial ATA interface. A larger cache means faster performance. A 64 MB cache combined with the 6 Gb/s Serial ATA interface makes this drive a perfect solution for the latest generation of PCs. Western Digital hard drives are designed to have the lowest power consumption of any high-performance desktop drives, which lowers the operating temperature for greater reliability. These highly reliable hard drives feature technologically advanced acoustics. With WhisperDrive and SoftSeek technologies, Western Digital has reduced the noise level to a point that is practically inaudible to the human ear at home or in the office.