DESC: Providing capacious storage in a slim form factor, Toshiba's 40GB 2.5-inch hard disk drive is an ideal solution for mobile computing and consumer electronics. With an areal density of 64.8 gigabits per square inch and a super slim package measuring 9.5mm high, Toshiba's MK4025GAS hard disk drive accommodates the storage needs of multi-functional mobile PCs and other applications, such as telecommunications products, printers, copiers, GPS systems and MP3 players.