i think i might need one to connect my dsi.
As far as I know, it allows you to connect to Wifi to play with player all over the world.
The nintendo wifi usb connector is like a router, but without all the set up and difficulty. you hook it up onto your computer and it will provide wifi to all nintendo items near it. The things that is supports are the Wii and the DS (and DSi) It is really easy to setup. it gives you a disc that you pop into your computer and it gives you step by step instructions on how to set it up. you just then need to have a DSi and a game that supports Nintendo WiFi. good luck :)
