Bootscreen Enabled EFI RX 580 8GB Sapphire Nitro+ For Mac Pro Tower 4,1/5,1

Compatible with macOS and Windows (via BootCamp). Supports Apple boot screen (gray screen with Apple logo on startup) on all ports (also on 4K displays). 7680x4320 maximum digital resolution via DisplayPort. Uses internal Mac Pro power supply. Supports PCI Express 2.0 link under macOS and Windows? - supports five displays simultaneously: 1x dual-link DVI + 2x DisplayPort 1.4 + 2x HDMI 1.4 (2.0 under Windows). Supports OpenGL, OpenCL and Metal in applications and games. Allows an upgrade to macOS Mojave 10.14 or macOS Catalina 10.15. Supports sound via HDMI and DisplayPort under macOS (from macOS 10.14 or above). PCI-Express 2.0 x16 (5.0 GT/s). Installed macOS 10.13.4 or newer. Native support by macOS High Sierra, Mojave, Catalina, no drivers needed. 1 x RX 580 8GB GPU W/ Apple Boot-screen Support.

1 x Dual Mini PCIE 6 Pin to 8 Pin Cable. Everything to install and setup included, Just Make sure you on 4.1 or higher and running macOS 10.13.4 or newer.

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