[SOLVED] how to connect pwm pump's cables

[Proprietary Software]

I have three cables coming out of my ekwb water pump.

https://imgur.com/a/EXKEVxX

View: https://imgur.com/a/EXKEVxX

Do I have to connect all of them? I recognized pwm and molex. What is the third one?

 

[cin19]

It is the RGB header, either the 3 wires or 4 wires, because I can't see from the picture, and I don't look for the water pump manual yet.
https://rog.asus.com/forum/attachme...5b0ea&attachmentid=79876&d=1554665933&thumb=1

 

[rubix_1011]

By your thumb - this is 4-pin RGB (gold-ish color sockets)