Noctua NH L9a-AM4 Compact CPU Cooler
 

" ... Noctua NH-L9a-AM4 chromax.black is another excellent cooler from Noctua. It performs great considering its small size and there's no problems with installation on any of the popular motherboards out there. The NH-L9a-AM4 is simply the best choice for all those who are looking for a small, quiet, and a good performing cooler for an AMD SFF or HTPC. "

https://www.funkykit.com/reviews/coo...ct-cpu-cooler/