I am building my personal private cloud. I am considering using second hand dell optiplexes as worker nodes, but they only have 1 NIC and I'd need a contraption like this for my redundant network.
Then this wish came to my mind. Theoretically, such a one box solution could be faster than gigabit too.
The level1 video shows thunderbolt networking though. It is an interesting concept, but it requires nodes with at-least 2 thunderbolt ports in order to have more than 2 nodes.
You are right, I typed the wrong thing.