100% tested original used cpu High quality with best prices Warranty for 1 year Safe ... Core 2 Dual CPU1 Core 2 Dual-(E4300) (1.8GHz,2M,800MHz,775pin,65nm)2 Core 2 Dual-(E4400) (2.0GHz,2M,800MHz,775pin,65nm)3 Core 2 Dual-(E4500) (2 ... .2GHz,2M,800MHz,775pin,65nm)4 Core 2 Dual-(E6400) (2.13GHz ...