Will a Peripheral cable from PSU work with a Case Fan's Molex Cable?

[mega proto]

I am working on my first build and the only connector that will seem to work for the molex cable from the 2 case fans are the Peripheral cables from my Power Supply, but it doesn't seem to fit. If it doesn't work then can someone please tell me what I should do to give power to the 2 Case Fans i have.

My Case

My Power Supply Unit

 

[rolli59]

Yes! it should fit 4 pin molex is std peripheral.

 

[mega proto]

Yes! it should fit 4 pin molex is std peripheral.

It worked! Thanks! I just had to add a LOT of force to it.

 

[mega proto]

Best answer selected by mega proto.