It's a box. A simple wooden box, with some screws and an LED output. How hard could it be?
It's called the Xbox Puzzle - you'll find out why at the very end. But the process getting there is incredibly elaborate.
I don't want to spoil any of the surprises for you, so just watch.
What a creation. It's not a surprise that the owner, FLEB, has puzzles like this in their collection. They're also the makers of a logic puzzle game called RYB, which looks rather neat.