Hitachi claimed a lead in mobile hard drives today by rolling out some of the most advanced 7mm (0.28in) drives to date. The Travelstar Z7K320 leads the way and is the first 7,200RPM disk in the ultra-thin size: it can provide near desktop-level performance but opens the door to thinner notebooks. It also fits in a typical 9.5mm tall (0.37in) notebook drive bay and can provide extra space for cooling or shock guards.
