New pc build, 3 cords left to plug but what are they for?

[Alexander Caine]

Hi everyone.
I have a Corsair Carbide Series 330R Titanium Edition Mid Tower Case I am using to build a new pc but there are three cords from the front of the case and I don't know where to plug them.
They have 3 pins, with space for a fourth. Pictures uploaded.

If anyone knows what they are and where to plug them, I would very much appreciate the help.

 

[Karsten75]

According to the manula for the case, these are the front panel connectors:

Can you identify them from there?

If not, trace them back to the switches or LEDs on the front panel.

 

[tech-wreck]

they don't look like front panel header plugs...

 

[tech-wreck]

could you get some better pictures? maybe place a piece of paper or card under the plug (resting on the open case) so the camera can focus on it?

 

[mcnumpty23]

those look like something to do with a fan controller

 

[tech-wreck]

those look like something to do with a fan controller

that's what i was thinking, but hard to be sure from the pictures.

 

[0x1eef]

That's fan controller headers. I have the same ones in my FD Arc Midi case. You can plug your case fans into this instead of motherboard and control the case fans speed manually (usually 5, 7 and 12V options) but I recommend to leave fans connected to motherboard and let BIOS or installed software (if you have one) do the job.