This is a clip for HackRF to allow it to hang from a laptop monitor. This is meant to work with the 'Sick of Beige' style case with 2mm thick acrylic. The clip accommodates monitors 6.5mm thick (which is fairly thin - this was built for a Lenovo Carbon X1). The standoff from the PCB to the top acrylicsurface is ~2mm higher than it needs to be because my switches don't fit inside the acrylic cutout.
So make sure you adjust the clip size for the laptop in question and reduce the standoffs to minimize profile if your switches fit in the cutout.