When you interconnect 2 nexus does it require to have a 10 Gig blade like  2 6500's in VSS does?

Nexus switches are designed for highly scalable end-to-end 10 Gigabit Ethernet networks, the Cisco Nexus 5000 Series and 7000 Series Switches feature continuous system operations and transport flexibility and support power and cooling efficiency to have redundancy in network we used to connect switches.

Hope to Help !!

Ganesh.H