The 6880 has a single fixed Sup 2T. I believe you meant the 6807. That's what we are looking at to replace our 6500s. There currently are no high density 10G cards out for the 6807 but our account rep tells us a 32 port 1/10G SFP+ line card is coming out in December. If it weren't for this new line card, we would probably lean toward a different solution.