First rig help

This is the list of parts except I want to get 4 gpus for now. And then get 2 later.

My question is, how do you put the GPUs into that mobo. It has 2 x16/x8 slots that I can put the GPUs in but how do I attach 2 more?

I've heard of risers but which ones should I get, how would I set them up, and where can I get those frames people are using for 4-6 GPU set ups.

Submitted June 10, 2017 at 10:26AM by Smooth_guy
via reddit