Apple Display: Adapter Question (Apple Mini DisplayPort-auf-Dual-Link-DVI-Adapter).

Dear Apple Community,

I've got an old Apple Display (30 Inch) and some older adapter.

Here you can see the full view of my adapter.

Question: How can I connect this monitor to a newer Mac Book Pro Retina 2015 with probably the newest Thunderbolts 3 ports? (Apple Mini DisplayPort-auf-Dual-Link-DVI-Adapter = Isn't the right thing because it seems it doesn't work for me).

Greetings from Switzerland,

PatrickMuffin