Silent CR-10 control box with one 120mm fan

Another cooling-solution with one big fan in the bottom. It's designed for my need and has two options for printing.
Most designs I saw are with two 120mm-fans. I think it's overkill and two fans produce double noise as a single fan.
Probably most people replaced already the two smaller fans ( next the mainboard) with more silent fans. Keep both of them in operation because their noise is minimal.
The problem is the loud fan in the PSU. Replacing with another 60mm-fan is pointless.

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