Been a question I have been trying to find a clear answer too for awhile now but it is not clear anyone online. I purchased a 4070 Super FE recently and was researching what connection it uses and it seems most websites suggest it uses a the 12VHPWR connection. However, when looking at the circuit board on the 4070 Super FE teardown, it shows "H++" on the connector which indicates it uses the 12V-2x6 connection. The same is also shown on the connector of the 4080 Super FE. I am aware that they are both interchangeable and work with each other, but I am just wanting a clear answer.