Guy at VGC claiming to dev says its fake because there has never been a connector in any dev unit that's connecting the device in the photo. Except the Wii U's dev unit has a similar connector:The bump on the controller is actually part of the system. The cord only connects to the very end of it.
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And here is the dev kit of Wii U
See anything similar yet ?
The plot thickens.
Fake made out of Wii U dev unit, or real?
Not similar to the leaked image.