Aspire M5800-U5802A Desktop - 2.66GHz - 8GB DDR3 SDRAM - 750GB - Windows Vista Home Premium x64 Contents - Acer Aspire AM5800-U5802A Desktop PC, USB Keyboard, USB Optical Mouse, USB Stereo Speakers Software Bundle - Windows Vista Home Premium 64-Bit Editio, Microsoft Works, Microsoft Office Home and Student Edition 2007 60-Day Trial McAfee Internet Security Suite 2008 60-Day Trial, 1-Year Limited Warranty Intel Core 2 Quad Q9400 2.66 GHz Processor; 6 MB L2 Cache, 1333 MHz Bus speed 8192 MB DDR3 RAM or 8 GB; 750 GB SATA Hard Drive