This is our updated GameCube Fan mount which allows for fans to be installed without fasteners that would break previous prints.
It replaces the original mount, you just transfer over the power switch board and pop the new 50mm fan in from the bottom (Recommend the Noiseblocker XS-1 fan) then button it all up.
We sell this bracket along with the recommended fans here: https://www.laserbear.net/products/gamecube-fan-mount-v2-1-with-pico-mount
https://www.laserbear.net/products/noiseblocker-xs-1-50mm-fan
The author hasn't provided the model origin yet.