Some edifier speakers and a sub. The back of the sub has some rca jacks, a coaxial, and optical. I could just get a rca to 3.5mm cable, but I like the optical cables.What is your setup that you need the optical out for?
I think I got it figured out though. I've landed on the Asus Prime AP201 case. I still need to look at some amd mobos and see if I'd rather go 7800x3d over 13700 or not. The m-atx board for intel that I like the most also happens to have an optical port.