Hello everyone. A few months ago I bought a mac pro from mid 2012, so I started to make hardware upgrades and left the change of graphics card for the end as it was the hardest thing to get (I'm looking for a Rx 580), I am very frustrated about this because, as I have read and seen, only the Sapphire model would work on the mac and so far I have not found any, I have seen sites like ebay, etc but taxes and international shipping to my country (🇨🇱) makes the price very expensive, so I was wondering if graphics cards from other brands like Asus, Msi, etc would work, because I have found many Rx 580 from different brands but nothing from sapphire😩. If anyone could give me some guidance I would really appreciate it.