Detail of the NanoHub used to connect the devices. This is one of the several boards I've bought. Some went destroyed because I've had a too big soldering device (they're really really small - then I've took a smaller one and things went better); in some others I've broken the cables during the several connect/disconnect actions working on the sample wood case. 

Overview of the back of the right side. I've had to cut a bigger hole in the metal plate, the trackball was too deep inside and it was almost impossible to use it. 

Detail of the LEDs strip. It's blocked by a wood piece and double side tape on both sides. 

The "protection" layer that keeps all the cables and joints in the back. Just the ones needed to connect the HDMI cable and the Trackball are still free.