You may have several laptops or other electronic accessories. Here is a vertical multi devices stand to optimize your space on your desk. This stand can old at least 3 devices. The parametric design is attached so you can generate your own model of the dimensions of your need using the free/libre software FreeCAD.

Update: 2020-04-10 uploaded the latest version of the source file mountains_parametric_devices_stand.FCStd (fix).