Dell Computer Corp Alienware Aurora Gaming Desktop PC - AAS-1559CSB Box Contents - Dell Alienware Aurora PC, Alienware Multimedia Keyboard & Optical Mouse; Pre-installed Software - Windows 7 Home Premium 64-Bit, Alienware Command Center, McAfee SecurityCenter with Anti-Virus, Anti-Spyware, Firewall 30-Day Trial, 1-Year Limited Hardware Warranty Intel Core i7-2600K 3.4GHz Quad-Core Processor with Overclocked Turbo Boost up to 3.9GHz Alienware High-Performance CPU Liquid Cooling 8MB Cache 6GB DDR3 1333MHz Memory