Question Is 6-pin PCI-e to Dual Molex for case fans safe?

Jul 17, 2020
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Hey, I’m in need of some help regarding powering some case fans. I’m planning on powering two fans (120mm coolermaster sickleflow) via molex. My PSU is a Corsair TX550m, and i believe it came with the cable, the “peripheral cable”, that i must have tossed. Anyways, I just picked up a dual 4-pin to 6-pin PCI-e cable and plan on routing it as such: psu>6p>4p x2>case fans (each one plugged into its own 4p).

My two main questions:
  1. Is this even a safe means of powering them? It seems like overkill; is that dangerous?
  2. Am i supposed to plug each fan into its own 4p male connector? They don’t have the same cabling; one has 2 yellows and the other has 2 blacks?
 

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