Question Kraken M22 installation

Dec 26, 2019
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I bought a pre built pc and am replacing the stock intel cooler with a kraken m22. I made it to the last cord which looked like the fan cord (3 pin connected) I took off the stock fan which was on the top left of the case to replace it however, the fan cable was strangely connected to what I believe was a molex, it looks permanently stuck to the molex and I’m not sure where to plug in the kraken 3 pin fan as my mother board has no more headers.