In June 2006, Toshiba introduced a 200GB 2.5-inch PMR drive only 9.5mm thick and weighing only 98 grams. This became the highest capacity 2.5-inch drive available at the time, and it featured the world’s highest areal density (178.8Gb/sq. inch or 277Mb/sq. mm) in a production drive. In October 2006, Toshiba announced it had produced more than one million drives using PMR technology.