An assembled and tested r2.1 openOBC board. This is what you get when you take one of these PCBs, apply some solder paste, stick these parts on it, and toss the whole thing in a toaster oven for a few minutes. Seriously.
This is still in beta so it is recommended to do some reading up on the current status of the project before buying, starting with the release announcement. It also never hurts to skim over the last few pages of the bimmerforums thread.