I'm a first time pc builder and noticed the rgb controller had a SATA cable. My motherboard is the Tomahawk B450 if it's relevant. I have no clue as to where the SATA cable goes and I can't find a connection point either.
The cable doesn't plug into the psu, It has the same end piece as the power port for an ssdYou mean the SATA power cable? You would need to plug that into a SATA power connection on your PSU.
Sorry about replying so late, I used that solution combined with some fixes and got the pc fully set up, this was a throwaway account, and I've never usen this forum before. I'd like to mark this as an answered question. But I don't know how.