Extensa 4420

The 160GB, 5400 rpm hard disk drive is made by Hitachi, and runs fast and quiet. The hard drive is already partitioned into three parts, the smallest of which is a hidden partition that contains the OS recovery data. This notebook also features Acer DASP (Disk Anti-Shock Protection) technology, which protects the hard drive from shocks, by absorbing the impact from a bump or a drop.