About this 3D model
I modified the fan duct base of the BentoBox V2.0 to add a switch and nearly completely hide all cables. See pictures for cable routing. Also the holes for the threaded inserts where to big, so I sized them down to 4.1mm. The lid is just snap fit. There is also room for a step down module: https://s.click.aliexpress.com/e/_DkqVZEr (Affiliate link) Switch https://amzn.to/3wof3wB (Affiliate link) 40x40x20 FAN https://amzn.to/4a3w2Cq (Affiliate link)