The cost of manufacturing the console and tablet controller is thought to be around $180, reports Forget The Box, whose anonymous source claims that it will ship for "no less than $300 when it launches".
The tablet controller is said to cost $50 to manufacture, while Nintendo is believed to have picked an "economical GPU and CPU", comparable with current consoles but cost-effective enough to maximise profits.
The Wii U was recently rumoured for a November launch by a Japanese retailer.
Nintendo has historically released the Gamecube on November 18 and the Wii on November 19, making the suggested date consistent with Nintendo's past systems.
The system's lack of graphical power was recently criticised by a number of developers, who suggested that it was less powerful than a PS3/PlayStation Vita combo.
Prior rumours have suggested that the Wii U could be anywhere between twice as powerful as an Xbox 360 and similar in power to Xbox 360.
Nintendo is expected to announce release details for Wii U at E3 2012 this June.
Watch the Wii U concept trailer below: