I'm adding 10GBE switch to my network. It's the US-48 by ubiquity. It has 2 10GBE SPF+ ports. I'm reading that the Chelsio T520-so-cr is one of the recommended cards to use.
So my setup would be:
Ubiquity Switch spf+ connected to Chelsio T520-so-cr. Here is the card I plan to purchase...