The Xbox 360 Wireless N Networking N Adapter is compatible with the Xbox 360 E console. If you connect the adapter to an Xbox 360 E console, it will disable the internal wireless N feature of the console. (Using this external adapter may improve signal strength and bandwidth if your wireless access point is far from your console.)
How to connect the Xbox 360 Wireless Networking Adapter
To connect the Xbox 360 Wireless Networking Adapter to your Xbox console, follow these steps:
Plug the USB cable into the USB port on the back of your console.
Extend the feet of the adapter to allow the adapter to sit on the console or off to the side.
Note If you are using a wireless adapter and a Kinect sensor, use the wireless adapter extension cable included with the Kinect sensor to plug the wireless adapter into a USB port on the front of the console.
Flip up the antennae.
If a network cable is plugged into the back of the console, unplug it.