Beware, the cable entry is perpendicular to the back. To have the cable come in from the bottom (or any other way) requires it to be adapted. It is designed to go through a wall/structure and into the cable/connector housing. I had to adapt this as I wanted the cable to come in from the bottom external to the mounting surface. I didnt see any of this on the Amazon advert. However I may have seen this from the picture if I had looked closer.