AB350M Pro4 motherboard with 16GB DDR4 G.Skill (2x8G) 3200Mhz Trident Z Ram Kit PN F4-3200C16D-16GTZB

[nessearthbound1]

Wondering if the ram listed will support the motherboard I have

 

[Barty1884]

Appears on the QVL for that motherboard, even for 1st Gen Ryzen.
https://www.asrock.com/mb/AMD/AB350M%20Pro4/index.asp#Memory

So yes, you should be able to run the full rated speed (3200MHz) on that motherboard*

*With a compatible CPU.