>>105651721
The board's official memory support lists 2666MHz with a caveat (XMP can run on 8th gen CPU).
No harm in buying a 3200MT/s XMP profile kit. If XMP doesn't work or is unstable, you can disable it and run it at the 2666 JEDEC/stock speed.
But I would not pay a premium for that kit when the same spec DIMM is available for $50.

https://pcpartpicker.com/product/FKKKHx/klevv-bolt-x-32-gb-2-x-16-gb-ddr4-3600-cl18-memory-kd4agu880-36a180u
Klevv is a reputable kit manufacturer, they are owned by the memory chip manufacturer SK Hynix.
It's like Micron owning the Crucial brand.

Your CPU can run 3200MT/s btw.
https://www.reddit.com/r/intel/comments/c09bi3/i59400f_ddr42666_vs_ddr43200_should_you_spend_a/

QVL link
https://download.gigabyte.com/FileList/Memory/mb_memory_h310m-h-2.0_20191128.pdf?v=5c61bc7528d069b1a9cf2c73cca99dd2