Amazon.com: MSI Arsenal Gaming AMD Ryzen 1st and 2nd Gen AM4 M.2 USB 3 DDR4 HDMI Display Port Crossfire Micro-ATX Motherboard (B450M Mortar) : Electronics
Can I use 2666MHz RAM in a 2133MHz motherboard? - Quora
Will 2666MHz RAM work on a motherboard which supports 2667MHz RAM? - Quora
How to run a 3000 mHz RAM on a motherboard that supports only up to 2666 mHz? What's the deal with this 'XMP' thing? And is it safe for the system - Quora
memory - Why is my 3000MHz RAM running at 2666MHz? - Super User