Nah, wasn't even officially or third party (had to hack USB and use linux) M$ don't want you thinking you have a Computer in your lounge. Its a console

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Check out liksang, there was a product called the Joy Frag or something like that that allowed you to plugin a keyboard and mouse via PS/2 for supported games (haloa and halo 2 being 2 of them). Really gave some the advanatage over others.