I needed a device for my Intel X710 dual SFP+ 10G network card to mount a small 40x40x10mm fan. This keeps the card cool even in tight systems with lower airflow. The part is attached to the PCB with a screw.

Please keep in mind when printing that you are printing something that sits on a hot heatsink. ABS has worked well for me so far. However, PLA will surely be a problem!

Have fun.