depends on which cpu you want to equip the mainboard with

https://www.msi.com/Motherboar...

Generally, the mainboard is capable of the following:

1866/ 2133/ 2400/ 2667Mhz (by JEDEC)
2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466 MHz (by A-XMP OC MODE)