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ROG Strix LC240 RGB Fan Connectors

Level 7
Hi! All - I am running Win 10 Home 64-bit on an ASUSTeK Prime 270-P and an Intel i7-7700K/4.2GHz. I recently replaced my old CPU cooler with the LC240 RGB cooler. and discovered that I do not have a dedicated RGB port on my MoBo. So I went on-line and bought a 2nd-source controller. When it arrived I found that the 3-pin splitter that came with the LC240 for the RGB fans didn't match the 4-pin connectors on the controller. With that being said, what is the pin-out on the ASUS fans, and are there any 3-pin controllers I can get? I would think that all 4 pins are in use on the one I bought, so it isn't compatible.

And are the fans on my cooler RGB or aRGB?

-= Florida =-