I need a refresher course in connecting power to video cards. I'm working with a Corsair RM750X. There are two 8 pin cables supplied. One of the cables has an 8-pin connector with another piggybacked off the first. I'm going to assume that I can use this to connect two video cards with one cable? I just want to be sure as I seem to recall running separate power cables to each card in the past. Can one cable handle the power for two cards? If it matters, I'm installing one 1080ti and one 1060. Thanks.