I designed and 3D printed an adapter for iMac G4 to mount and charge iPad Pro magnetically

Magnetic iPad Stand with Charging
https://amzlink.to/az03Bp6W0zDPl

Other Components
https://amzlink.to/az0Qwh3hY9pNe

Related Tutorial: 4K screen upgrade https://youtu.be/3ne8Cn8c1-A

Detailed iPad stand conversion video coming soon!