New Genuine Apple 32GB (2x16GB) DDR4 2933MHz RAM Memory Kit for Mac Pro 2019

Speed: 2933MHz (downgraded to 2666MHz with 8-core processor). Notes: Requires macOS 10.14.6 Mojave or later; designed for ECC (Error-Correcting Code) support; not user-upgradable in Macs with soldered RAM (e.g., MacBooks, M-series iMacs).