120-mm fan stack
thingiverse
I built this setup specifically for my gaming rig, and the 120mm fan mounted at the back of the case actively circulates air directly onto the processor's cooling system. Without the addition of a shroud or dust guard, valuable airflow is compromised, but I'm hoping this modification will effectively resolve that issue.
Download Model from thingiverse
With this file you will be able to print 120-mm fan stack with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on 120-mm fan stack.