Ah, that makes sense. I'm not going to be using SLI anyway so that can go in the bottom draw.
So if you do want to use SLI you'll end up 2 of these things then .... maybe they could have made it a bit more fun by putting a random half in each box - there you are, just about to install the second card, but 'Blast, I've already got the foamy bit - anyone want to swap a metal screwy bit?'
Ta