Super thin fan adapter 120 to 92mm reduction

This is a fan adapter that reduces from 120mm to 92mm and is only 5mm thick.

I wanted to install an 92mm PC fan in the rear of a pc case with provision for a 120mm fan, the adapter had to be as thin as possible. And since I only found adapters that apply very strongly (all with funnel / fan duct) I created my own.

This is actually already the whole story behind the adapter! :-D

PS: Also I have created an adapter from 92mm to 80mm. ;-)