HTS725050A7E630, PN 0J43985, MLC DA7069, Hitachi 500GB SATA 2.5 Hard Drive 500 GB storage capacity, SATA 6Gb/s Interface, 512e Sector size 30 Recording zones, 630 Max Areal Density, 600,000 Load/Unload Cycles 32 Data Buffer (MB), 7200 Rotational Speed (RPM), 4.2 Latency Average (ms), 1369 Media transfer rate (Mbits/sec, max) 600 Interface transfer rate (MB/sec, max), 13 Seek Time (read, ms, typical), 1ms Seek time, Track to track (typical) (read) Seek time, Full Stroke (typical) ms (read): 25