GameStop: Xbox 360 wireless N adapter coming Nov. 3, costs $100 | VG247
Amazon.com: Xbox One Stereo Headset Adapter : Video Games
Microsoft Xbox 360 Wireless a/b/g Network Adapter : Video Games - Amazon.com
Wireless Gaming Receiver Black
Picked up this time capsule - still on the old (but not blades-old) Dashboard. Thing is mint! Nov. 2005 build date and had the GameStop (Mad Catz) HDMI converter too - $40
GameStop listing points to November 3rd launch, $100 price for 802.11n Xbox 360 adapter | Engadget
Amazon.com: Microsoft Xbox 360 Wireless a/b/g Network Adapter : Video Games
Microsoft Xbox 360 Wireless Network Adapter GameStop Pre-Owned | eBay