This cable connects to your device and you should insert it into the appropriate port on your gadget.
This cable connects to your device and you should insert it into the appropriate port on your gadget.
It seems you own an RGB controller and a fan controller. The connector in the first photo appears to be for attaching a fan. If it's only connected to your power source, the fan will operate at maximum speed continuously. Unless you have any fans not connected to the motherboard or the fan controller, you can disregard that part.