Ender 3 cover for a quieter fan

The cover fits the board housing of the Creality Ender 3 printer and it can be mounted as replacement of the original cover. The original fan inside the housing is small and very noisy. This is why I created this cover to use a bigger and quieter fan. The fan has the dimensions of 80x80x10mm and uses 24V. In addition, the replacement cover provides space for an external SD slot module and USB extension. This was required for my setup because I use the MKS Gen L board, which has no SD slot within