From Atlanta Video Game News Examiner:
"At a MSRP of $99.99, Microsoft's Xbox 360 wireless adapter has been a tough sell since the launch of the console back in 2005. Originally supporting the wireless "A", "B", and "G" protocols, the Xbox 360 wireless adapter performed well and blended in nicely with the Xbox 360 but was criticized as being over-priced in comparison to other USB wireless adapters. This week though, Microsoft added another letter in their wireless alphabet soup by releasing the Wireless N Adapter.
Wireless N (802.11n) supports speeds up to 160mb/s and a much greater range than previous wireless protocols. The question is, do you need it for your Xbox 360? Let's ask a few question to find out and then see if we can find some cheaper alternatives."