Technical specifications Performance specifications as known at time of announcement Typical average read seek time: 6.8 ms (for 7200 rpm) and 5.2 ms (for 10,000 rpm) Rotational speed: 7200 rpm and 10,000 rpm Latency: 4.2 ms (for 7200 rpm) and 3.0 ms (for 10,000 rpm) Burst transfer rate (maximum): 160 MBps Sustained data transfer rate: 16 to 26 MBps (for 7200 rpm) and 21 to 35 MBps (for 10,000 rpm)