updated 11:00 am EST, Tue November 10, 2009
X360 11n wireless adapter now available
After a premature release, Microsoft's 802.11n Wi-Fi adapter is now on sale through Newegg. It provides multiple times more bandwidth than the original 802.11g adapter and uses MIMO (multiple in, multiple out) through twin antennas to both provide a more reliable signal as well as to extend range. Microsoft claims up to twice the range of the earlier technology.
Microsoft's adapter is also dual-band and can run on 5GHz to avoid interference as well as 2.4GHz for those with older 802.11n routers or who have to run a mixed-mode network to support legacy devices. It plugs in through USB and is listed for $100, though Costco before it temporarily pulled the adapter was selling it for $88.