Wii U
From Rare Gaming Dump
The Wii U is a home video game console released by Nintendo on November 18, 2012 (North America).
Wii U used a fully custom 16 bit, Macronix DSP as the coprocessor.
Wii U PP TestPad
Prototype Wii U Pad used for validation testing. Contains a menu allowing access to various test sequences. Mainboard is X11, suggesting this is probably a very late or the last prototype production run.