I bought the 80A TeslaTap. I have a 48A Wall connector on a 60A circuit for my PRO. I thought the 50A would be fine but for that product (I called the maker) you need the 80A unit for charging at 48A. He said that it is fine for 48A up to 3 hours at a time, but for continuous charging you need to be 125% above, so 60A minimum. Plus he said that even though this is rated at 80A, it is only good for 64A continuous.
That is actually different than for his TeslaTap Mini, where the rating represents the continuous capability. Sooooo, if it doesn't indicate "continuous", go with the 125% rule.
I originally bought the LECTRON adapter. I liked it and it is rated for continuous use at 48A, but it fit extremely tight into my truck's charge port. So much so, I was concerned about damage to either the pins or the actual charge port mounts. Therefore, I returned it and decided I wanted something with a J1772 handle for better fitment vs the other type adapters, even the others from TelsaTap.
And that said, this handle is a bit snug but doable.