Has holes for 10x3 magnets in the back to be used on Core one to measure filament spool weight. 

I've removed the barrel jack connector to fit it in the box and soldered USB cable directly to the board (pads are there). I've also desoldered breakout pins and connect HX711 using small wires. The box is a little bit deeper to accommodate wires and soldering, so you may need to put something in to avoid board movements when pressing buttons from the front.