An exciting new development, MVC has cracked the EFI for 5700XT native support in4,1/5,1 Mac Pros. And while you need 10.15.1 for full video and audio drivers, the good news with the EFI is you still get an image in earlier OSs for basic screen use. Pre-orders start 3/1/20 for cards shipping 3/10/20 or so. (Some shipping issues with Eastern countries). Yep, no more power issues, these cards are 6&8 pin from the factory. So all the benefits of native EFI, easier switching OS's and diagnostics, while also harnessing the power of the latest and greatest from AMD. Win/Win !