MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.

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The fan is completely silent, though it is running at minimum. My room is pretty noisy with other stuff so it might be audible but I don't notice it. I don't know how you size these type of fans, but the outside diameter of the case is about 70mm.