Acer AS55165474 / AS5516-5474 / AS5516-5474 15.6 Notebook PC Contents - Acer AS5516-5474 Notebook, 6-Cell Lithium-ion Battery, AC power adapter Software Bundle - Windows Vista Home Basic, Microsoft Works, Microsoft Office Home and Student 2007 60-day Trial MacAfee Internet Security Suite Trial, 1-Year International Limited Warranty AMD Athlon 64 TF-20 1.6 GHz Processor; 512 KB L2 Cache, 667 MHz Bus Speed 2048 MB DDR2 (PC2-5300) RAM Max - 4GB; 160 GB (5400RPM) SATA Hard Drive