Vertical Stand for Behringer UMC404HD

The round base of this model provides most of the stability so I printed mine at around 15% infill as it doesn't need to be particularly solid to work well. The side walls are measured to sit between the rubber feet of the interface so as to get a good amount height on the sides without sacrificing support. The more surface area, the better. 

You could also remove the rubber feet from the interface and glue them onto the model for a more permanent solution.