Western Digital 80GB 7200 RPM SATA Internal Hard Drive 8 MB cache fast data transfer from a cache four times larger than the industry-standard 2 MB size. 7200 RPM high-performance rotational speed for high-capacity hard drives. Data Lifeguard Tools software utility that works in conjunction with the embedded Data Lifeguard&#8482; features (including shock protection, an environmental protection system. SecureConnect provides a 500 percent stronger cable-to-drive connection than first-generation SATA hard drives and cables; ensures backward compatibility with legacy SATA cables and backplanes. FlexPower connector technology that accepts power from both industry-standard and new SATA power supplies.