500 GB SATA Hard Drives ( WDBMYH5000ANC) Product Specifications Interface SATA 3 Gb/s Performance Specifications Rotational Speed 5,400 RPM (nominal) Buffer Size 8 MB Average Latency 5.50 ms (nominal) Seek Times Read Seek Time 12.0 ms Track-To-Track Seek Time 2.0 ms (average) Transfer Rates Buffer To Host (Serial ATA) 3 Gb/s (Max) Physical Specifications Formatted Capacity 500,107 MB Capacity 500 GB User Sectors Per Drive 976,773,168