VGKing on 07 November 2012
Shane Satterfield(Gametrailers Editor-in-chief) has confirmed that the Wii U has no ethernet port. This means the only way to get online on a Wii U is through wi-fi or by purchasing some sort of dongle.
Here's something that may surprise some folks. There is no ethernet port on the Wii U. Wi-Fi only unless you buy a dongle.
