Toshiba Satellite L455-S5008 Pentium Dual-Core T4400 2.2GHz 4GB 250GB DVD&plusmn;RW DL 15.6" Win7 Home Premium w/6-Cell Battery Toshiba Satellite L455-S5008 Pentium Dual-Core T4400 2.2 GHz 15.6-inch Notebook General Features: Silver color with black LCD bezel and keyboard Microsoft Windows 7 Home Premium 64-bit pre-installed w/CoA 6-Cell Lithium-Ion battery pack Mobile Intel GL40 Express Chipset Intel Pentium Dual-Core T4400 2.2 GHz CPU 1 MB L2 Cache, 800 MHz Front Side Bus