I just had the splitter I don't have the generator or the solar panels but this was the piece to the puzzle I needed for my other solar generator and solar panels
The 2-to-1 cable connects two solar panels and charge my HomePower ONE at the same time. It works great for the purpose.
I bought the cable to go with your Generark 2 that I wanted to buy. But the finance company Affirm said I did not qualify to buy the Generark 2 and Generark 1 is not big enough for my needs.