I may be considering to buy a nice Aorus B450 Pro Wifi with 8GB 2400MHz G.Skill Trident Z RGB RAM sticks. Although the RAM is in the QVL list, but the accepted speeds are different. The QVL list said 2133, which is labelled as native. I don't know what that means. Here's the link:
http://download.gigabyte.asia/FileList/Memory/mb_memory_b450-aorus-pro-wifi_pinnacle.pdf
RAM Codename: F4-3000C16D-16GTZR
http://download.gigabyte.asia/FileList/Memory/mb_memory_b450-aorus-pro-wifi_pinnacle.pdf
RAM Codename: F4-3000C16D-16GTZR