MSI A6400-042US 15.6" Laptop (2.3GHz Intel Core i5-2410 Processor, 4 GB RAM, 500 GB Hard Drive, Windows 7 Home Premium 64-bit) Silver MSI A6400-042US Core i5-2410M 2.3GHz 15.6-inch LED Notebook General Features: Silver color Microsoft Windows 7 Home Premium 64-bit pre-installed w/CoA 6-cell lithium-ion battery Intel Core i5-2410M 2.3 GHz dual-core processor w/Hyper-Threading 3 MB Intel Smart Cache, 5 GT/s DMI speed 2.9 GHz Max Turbo Frequency Intel HM65 chipset 4 GB DDR3 RAM