The biggest issue with Mini-ITX builds using Intel’s 12th Gen CPUs is motherboard CPU cooler compatibility or lack of. This issue is not limited to just low profile coolers, but also larger tower style coolers.
Noctua NH-L9i-17XX chromax.Black has max height of 37mm and no motherboard or ram compatibility issues. The L9i-17XX includes single NF-A9x14 chromax.Black fan which operates at faster RPM than the standard version.
Thermalright’s AXP90-X47 FULL is an all copper low profile CPU cooler which comes included with 92x15mm red fan. It has a height of 47mm when equipped with 15mm think fan or 57mm with 25mm thick fan.
Thermalright’s AXP90-X53 FULL BLACK is an all copper low profile CPU cooler which comes included with 92x15mm black fan. It has a height of 53mm when equipped with 15mm think fan or 63mm with 25mm thick fan.
The Noctua NH-L12 Ghost Edition is 66mm in height with 48mm of RAM clearance. The L12G includes single 92x25mm brown fan. The NM-i17xx-MP78 mounting kit is required for LGA1700 socket.
Thermalright’s AXP120-X67 is low profile CPU cooler which comes included with 120x15mm fan. It has a height of 67mm when equipped with 15mm think fan or 77mm with 25mm thick fan.
Noctua NH-C14S is a 115mm top-flow CPU cooler, featuring deep fin stacks and uses Noctua’s 140mm NF-A14 fan. This is single fan CPU cooler that provides similar cooling performance to its dual fan predecessor.