Designed for use in the fastest PCs on the market, including high-performance business computers, multimedia and gaming systems, the 500GB WD Caviar SE16 7200 RPM Hard Drive comes with a massive 16MB cache for lightening fast performance. Its cool operating temperature means longer service life and greater reliability. While its WhisperDrive and SoftSeek technologies minimized noise to levels barely perceptible to the human ear in home and business environments. The Cavier SE16 protects your impoprtant data in a number of ways. Its Data Lifeguard technology is an exclusive set of data protection features, including shock protection, an environmental protection system and real-time embedded error detection and repair. WD's Data Lifeguard technology automatically finds, isolates, and repairs problems that may develop over the life of a hard drive.