Aurora R7, RTX 3070, maximum GPU width?

Hi, I am looking to upgrade my graphics card to a RTX 3070 but I've seen a lot of people say some cards are to wide for the case since the metal triangular bracket is blocking anything about 5". But I have seen people post that they managed to fit wider GPUs, such as the RTX 3070 ASUS dual fan. 

What is the maximum size GPU width you can fit in the case?