Asus X53E-RS51 15.6" Notebook Computer, Intel Core i5-2450M 2.50GHz, 4GB RAM, 750GB HDD, Win 7 Home Premium (Upgradable to Windows 8 Professional) Box Contents - ASUS X53E-RS51 Notebook, AC Adapter, 6-cell Battery; Pre-installed Software - Windows 7 Home Premium 64-bit, ASUS Utility, 1-Year Limited Global Hardware Warranty, 1-Year Accidental Damage Warranty (North America Only, must register within 60 days) Intel Core i5-2450M 2.6GHz Processor 3MB Smart Cache 4GB DDR3 SDRAM Memory 750GB 5400RPM SATA Hard Drive