Built to Toshiba Hard Disk's high standards of quality and reliability, Toshiba 320 GB Laptop Internal Hard Drive offers the features that are ideal for your everyday mobile computing needs. Designed and manufactured with technology found in Toshiba original award-winning desktop and mobile hard drives. Designed with strong aluminum materials and a hard Tied-Shaft motor, which increases drive pinch strength by as much as 30 percent. These features allow for a more rigid structure without degrading performance or increasing power consumption.