Where does this cable go?

[Electro_]

Hello, I'm currently working on my PC, however, I've found this cable which I'm not sure where to connect to. I've tried to find different places in the motherboard but I still can't seem to find where does the cable fit. Since I'm a first time builder, please tell me if there are other cables that are misplaced in my build. Thanks

Images for the cable, motherboard and the fan controller

Information:
Cable - Comes from the fan controller in the case, it has a tag that's saying cable extension attached to it.
Case - NZXT Noctis 450
Motherboard - Asus Maximus VIII Hero

 

[alexoiu]

Hi, You'd connect a fan to it, if its cable is too short and it can't be directly connected to the fan hub.

 

[weberdarren97]

If there are no fans that are not hooked up, meaning that all fans turn when you power the system on, then it's just an extra.

It's a fan power connector, a PWM connector to be specific.