I have been asked about the "White" box, it is a gravity feed upright smoker that I built from scratch.
I run lump charcoal that produces a very clean smoked product. The lump feeds via gravity so I can start my coals, dump them fill my chute and smoke for over 24 hours. It is ran by a small computer and fan (about the size of a deck of playing cards). here are some pics of the build.