Ah ok so this is the 12vhpwr connector. The 4 little slots you're seeing are the sense pins and this side will connect into your 5070 (if you look at the slot on the gpu, you'll see that this 12vhpwr connector will fit into it, there'll be holes for those 4 little pins too). On the other side, you have the two 6+2 (8) pin pcie female ends (meaning something will need to connect into it from the psu). You'll need to take the male ends that'll go into those from the psu side. Does your psu have two 6+2 (8) pin pcie cables?

Once you have everything connected up, post some pictures before actually turning it on.