The Compaq Presario R4000 series brings you the power of a desktop PC coupled with the convenience of a notebook. Nothing’s holding you back form experiencing blazing-fast application performance! Utilizing a high-performance AMD Sempron processors and a powerful graphics board, this notebook is perfect for your most demanding home-office tasks. It features AMD’s Cool ‘n’ Quiet technology, which ensures reduced heat output even after extended operation. You also get enhanced protection against the spread of PC viruses such as MSBlaster and Slammer.