Was mounting my MR-16 boards in the enclosures I got from the pseudo-group buy. While all of the boxes are labelled as CG-500, not all of the mounting holes in the boxes were the same. Two of the enclosures lined up perfectly with the holes in the PCB. On the other two, the bottom two holes on the PCB line up nicely with holes in the enclosure, but there is nothing at the top to screw into. Other than that the cases appear to be identical. Just wanted to share, that not all of these appear to be the same when it comes to mounting.