Product Detail 500GB - 45 hours of HDTV broadcast, or 40,000 typical library books, or 100,000 high-quality, 4 minute MP3 recordings Internal SATA interface Fast access with up to 7200 RPM rotational speed For Desktop installation in a PC with available 3.5 Hard Drive internal bay . The "HITACHI Deskstar 7K500 Internal Hard Drive H3500B72S" is best product for you. We recommended HITACHI Deskstar 7K500 Internal Hard Drive H3500B72S