Can I use my Wii power adapter on my Wii U? - Wii U
2013-11-21u2002·u2002The power supply is different, and while similar, the heads on the Wii and Wii U power supplies are different so you can't plug it in anyway. Yup, learned this the hard way. Same here, looked at the general size and thought I'd save myself the trouble of rerunning wire...
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