They are not listed in the Official QVL.
https://dlcdnets.asus.com/pub/ASUS/mb/LGA1151/ROG_MAXIMUS_XI_HERO/ROG_MAXIMUS_XI_HERO_SERIES_Memory_QVL_0320.pdf
MFG
Except of the manufactures QVL List, there are also available RAM compatibility-tools like https://www.corsair.com/de/de/Kategorien/Produkte/Arbeitsspeicher/c/Cor_Products_Memory?type=motherboard&manufacturerSelection=ASUS&systemModelSelction=Pro%20WS%20X299%20SAGE%20II&maxModule=4&minModule=4&maxCapacity=128&minCapacity=128&page=0&sort=popular&view=listView&filters=memoryType_DDR4&discontinued_product& If I understand properly that your board is PRO WS X299 SAGE II, this RAM (CMT128GX4M4D3600C18) seems no to be listed. Anyways, there are many similar alternatives available. If you need further advice, you can always ask our customer service: https://helpcenter.digitec.ch/hc/de/requests/new.