Step 1: If your motherboard doesn't have an integrated rear panel, take it from the box — it looks like a small cutout of all the different motherboard ports — and install it in the back of your case by orientating it properly and pushing it in.
Step 1: If your motherboard doesn't have an integrated rear panel, take it from the box — it looks like a small cutout of all the different motherboard ports — and install it in the back of your case by orientating it properly and pushing it in. Double-check that it aligns with your motherboard's outputs before plugging it in if you're not sure which way it goes.