Instructions
Turn off the Xbox 360.
Hook your adapter's USB plug-in into the Xbox 360's rear USB port. The USB port delivers power to the adapter.
Attach your adapter to the rear of your Xbox 360 by snapping its two protruding edges into the two holes above the serial code.
Turn on the Xbox 360 and remove any disc in the system. The console boots to the dashboard menu when the disc tray is empty.
Scroll up to "My Xbox," scroll all the way to the right to "System Settings" and press the "A" button.
Scroll to "Network Settings" then press "A."
Press "A" again to open the network configuration menu.
Press "A" again to open the "Wireless Mode" settings.
Press "A" again to choose "Scan for Networks." The adapter will locate nearby wireless networks.
Highlight the network you wish to connect to, then press "A." Your Xbox 360 will prompt you to enter a password if your network is password protected.
Enter your network's password.