PC Case RGB Fans

[Rekt1337]

Hello, i recently bought new pc case, on the front there are 3 rgb fans each with two cables, one to power them, and the second one i believe to control rgb, i know i have to buy a controller to control their lighting, but how about powering them? my mother board has two fans plugging options, cpufan and sysfan, cpufan has 4 pins and is taken by cpu cooling, the one left which is sysfan has 3 pins, so there is a question, if i buy a controller, is it going to not only control the lighting but also power them? my fans have 4 pins each so i need to buy a controller that fits them, but i dont know if it itself needs a 4 pin connector to mobo, can i get a adapter from 4 to 3 pins? is it possible? thanks

mobo: h81m-p33 
psu: silentiumpc vero m2 600w
case: msi mag pylon

[JohnDongus]

Just plug it into the three pin

[Rekt1337]

Just now, JohnDongus said:

Just plug it into the three pin

which pin should i leave hanging?

 

[JohnDongus]

1 minute ago, Rekt1337 said:

which pin should i leave hanging?

 

It will only go in one way there's a little slot on both the pin connectors that will line up

[Rekt1337]

1 minute ago, JohnDongus said:

It will only go in one way there's a little slot on both the pin connectors that will line up

i'll try it out

 

[Rekt1337]

3 minutes ago, JohnDongus said:

It will only go in one way there's a little slot on both the pin connectors that will line up

and also, is there any danger in it? what will i miss while doing so

 

[JohnDongus]

19 minutes ago, Rekt1337 said:

and also, is there any danger in it? what will i miss while doing so

 

You will miss RGB controlling

[Rekt1337]

Just now, JohnDongus said:

You will miss RGB controlling

if that's what makes them lit, what is the second cable for? or is is just for controlling and the second one is for cooling?