Hitachi CinemaStar P7K500 500GB UDMA/133 7200RPM 8MB IDE Hard Drive Hitachi CinemaStar P7K500 500 GB UDMA/133 7200 RPM 8 MB Hard Drive General Features: 500 GB storage capacity UDMA/133 interface 7200 RPM spindle speed 8 MB buffer 1138 Mbits/sec. maximum media transfer rate 133 MB/sec. maximum interface transfer rate 14 ms average seek time Silent-seek acoustics for Consumer Electronics applications Low power idle for cooler system operation