Xbox Live with no strings attached: Dual band 5 GHz and 2.4 GHz Wireless A/B/G home network compatible - Compact, high-performance design - Powered by Xbox 360 to eliminate adapter clutter - Stream photos and music from Microsoft® Windows® XP and recorded TV, movies and videos from your Microsoft Windows XP Media Center based PC. Play head-to-head wirelessly - on Xbox Live, or on your home network.

Product Details: 

• The Xbox 360 Wireless Networking Adapter is highly versatile and supports 802.11b, 802.11g, and 802.11a. 
• The Xbox 360 Wireless Networking Adapter is powered seamlessly by your Xbox 360 gaming console, so there's no external power adapter to plug in. 
• You can transfer high-definition video and CD-quality music from your Media Center PC to your Xbox 360 via 802.11a wireless media support.