Upgrade your laptop's hard drive or replace a dead hard drive with this new 4.0GB Hard Drive. We strongly recommend to upgrade your hard drive if you are planning to upgrade your Toshiba Laptop to Windows XP or Professional. Compatibility is guaranteed or your money back. This Toshiba Hard Drive Has a capacity of 4.0GB, a Hight of 12.5 mm and a form factor of 2.5". New Toshiba Laptop hard drive with one (1) Year Manufacturers warranty.