Hitachi Deskstar 7K500 HDS725050KLA360 500GB SATA 300 7200RPM 16MB Hard Drive Hitachi Deskstar 500 GB Serial ATA Hard Drive General Features: 500 GB storage capacity 7200 RPM spindle speed 16 MB buffer 8.5 ms average seek time SATA/300 interface 300 MB/s burst data rate for faster data access Rotational Vibration Safeguard 3.5-inch form factor Regulatory Approvals: CE cUL C-Tick MIC