Hello Andreas

These strips have a 3-pin A-RGB connector with 5Volt. They can be connected directly to a suitable (newer) board and controlled from Windows with the software of the mainboard manufacturer (e.g. with the Aura software at Asus).
Attention! Do not connect to the similar looking 5-pin 12V RGB connector!
If the board does not have such a 5V connector, you can use a separate controller for it. I use the Jonsbo RC01 controller from Digitec. This is very easy to connect, but cannot be programmed and simply has 16 different light settings.

Good luck