Does XBOX 360 have a Wireless NIC?

[Elie]

I'm just wondering since my wireless router is on the second floor, and there is no way to run an Ethernet link directly to the XBOX (soon to be replaced with XBOX 360)

All I read about are the wireless controllers, which is cool but still....

Thanks,

[GT98]

Its a $99 Option to add wireless networking to it and only has a RJ45 port in it.