10 gig between two 6248

Hi,

I am new to dell switches, we want to move all servers to a 6248 which would be connected to another 6248 switch.

So we want to use 1000Base fibre ports on 6248 so that the link between the switches can handle the load.

Please let me know if those are SFP ports?

How can I connect two 6248on these port, I mean what cable and hardware do we need for this 10 gig connection