I just bought an AMD radeon 590 and i have to plug this 6+2 and 6 pin connectors. In my PSU (Corsair TX550M )there were only 2 sata cables, one for the fans, one for the cpu (4+4), one 8 to 6+2 pin and the one for the motherboard. Now i miss the 6 to 6 pin to connect the other slot of my GPU and i can't find it on internet anywhere.