High Quality Content by WIKIPEDIA articles! The Nintendo Wi-Fi USB Connector is an accessory, developed jointly by Nintendo and Buffalo Technology, which allows Nintendo DSi and Nintendo 3DS and Wii users without a Wi-Fi connection or compatible Wi-Fi network to establish one via a broadband-connected PC. Inserted into the host PC`s USB port, the connector functions with Nintendo DS, Wii, DSi, 3DS permitting the user to connect to the Internet to play Nintendo Wi-Fi Connection games and various other online functionality. The product was the best selling Nintendo accessory to date, according to the official Nintendo site on 15 November 2007, but was discontinued in the same month until further notice. On September 8, 2008, Nintendo announced the Nintendo Wi-Fi Network Adapter, an 802.11g wireless router/bridge which serves a similar purpose.