This insert goes above the S.U.S.A.N. to hold all the cards and player components. Under the S.U.S.A.N. are the planet and player boards, still in the default black plastic insert. 

Fits sleeved cards. The trays should be nearly flush with the box lid (if you're using the S.U.S.A.N. lid), so it works well enough for vertical storage, but there may be some loose cards or bits that slip through. It's a bit difficult to have everything flush since the trays are sitting on top of the S.U.S.A.N and that doesn't have a perfectly flat surface. You could put this printed insert at the very bottom of the box (underneath the default black plastic one) for a more secure solution for vertical storage, but you might need to add some thickness with a cardboard spacer for everything to sit flush, I haven't tried it.