Wireless NIC

Description
Designed for versatility and ease, the Xbox 360 Wireless Networking Adapter enhances your Xbox 360 experience in the digital home, seamlessly synchronizing with the Xbox 360 system.

You can easily transfer videos and music to your new Xbox 360 system from your Media Center PC, chat with your friends, play games via Xbox Live, and more—all without the clutter of wires.

Features

Transfer videos and music from the Media Center PC to the Xbox 360 via 802.11a wireless media support
Gamers can connect wirelessly with friends and play games via Xbox Live
The Wireless Network Adapter supports 802.11a, 802.11b, and 802.11g protocols
The Wireless Network Adapter is powered by the Xbox 360 gaming console – there's no external power adapter to plug in

Retail specs:

Retail Price: $99.99 (£59.99)
Release Date: Launch
Manufacturer: Microsoft

User reviews

The Wireless NIC is extremely easy to setup, just plug it into the usb port at the back and then attach it to your console, Then go to the System Blade and choose Network Settings, click edit settings and then select Wireless mode at the bottom, It will search for available Wireless Access Points. Select your access point and enter the WEP/WPA key twice.

And that's it, you should be able to connect to XBOX Live and the Other PC's on your network (MCE etc.)
(You may need to check your Access Point/Router settings if you have NAT problems [for best performance it should say Open]) [22 June 2006 - After the recent major dash upgrade the NAT status of Open seems to have changed to Moderate but mine still works perfectly well] - toypaj

See also

Bolt-ons
Other accessories
Plug-ins
Games