After long thinking and making some checkin etc. Decided to replace my ol RPI 4 with a powerful mini server, so this time my HA will run a blazing speed even when I compare with my Synology.
Nice! Do you anything else then just HA on it?
For cooling, i would get a new case and a beefy air cooler or AIO cooler, but its not easy to get a case with these mounting holes.