thanks for the reply, and i just looked up my Gskill Trident Z ram, and they're 45mm tall 💀Welcome to the forums, newcomer!
If you don't have ram with tall heatsinks, the cooler should fit.
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So less than 37mm's for your ram.
In fact if you look at their product page;
https://www.idcooling.com/product/detail?id=410&name=FROZN A620 BLACK
You'll see they're using DDR4 Kingston Fury Beast ram modules. Which are 34mm's tall;
https://www.kingston.com/dataSheets/KF432C16BB_8.pdf
What is the make and model of your case?