When dependability counts, a Western Digital Caviar drive offers the features needed to make it an ideal choice as an internal 320 GB hard drive. By combining high performance capability with reliability and the capacity needed to hold 80,000 MP3 files, this Western Digital Caviar hard drive is suited for multiple uses. Its 3.5-inch, low profile form factor and industry standard SATA interface allows this Western Digital Caviar drive to be installed in virtually any desktop PC. While its speed and reliability make it well suited for use in a business PC, home computer owners will appreciate the low heat, low power consumption, low vibration, and low noise operation of this Western Digital Caviar hard drive. One of the innovative ways this 7,200 RPM internal 320 GB hard drive protects data and reduces wear is a feature that prevents the recording head from ever coming in contact with the disk media. Adding to its usefulness, this Western Digital Caviar drive’s specifications have led to it being tested and recommended by the manufacturer in RAID-0 and RAID-1 applications (consumer level backup).