Update: I am now able to 3D print and sell these fan shrouds (unfinished, without fans). Please get in touch with me via my website if you're interested in purchasing one: An overview of the modifications I've made to my Supermicro SC846 chassis to get it down to ~40dB. The server houses my 100 TB FreeNAS build. Stux's fan control script: 3D model of front fan shroud: Overview of server build (being updated):