^ This. Also, consider:Thermalright Extreme Odyssey II 12.8 W/mK I used these but they're super stiff. Be careful, if thickness is off, your core wont...
In my experience, the Plugable TBT3-UDZ Thunderbolt 3 Docking Station 100W PD is the safest bet tho. It doesnt flicker and handles dual 1440p easily.....