Note : the download will grant you all the files at once ( I do not know how to have them all display at once ) This big two part diy HDDs rack allows to hold up to 16 hdds and make them simple to place and access. The smaller single peice is to hold an extra two HDDs. It is designed to be hold under a metallic plate ( as seen on the picture or here : https://youtu.be/S9yKNm5F6hw ) The stencils are to drill the holes easily and the HDD spacers are to ensure proper airflow in between the HDDs. The front of the rack takes in 3 120mm computer fans to cool the HDDs