At $1,149.99, the ASRock Z690 Aqua is the least expensive option for a flagship-class Z690 board with integrated custom water cooling. It has many features you’d expect on such an expensive motherboard, but it is missing a couple of things we would want (PCIe 5.0 M.2 storage and water flow/temperature sensors for the loop) that would make this unquestionably the liquid-cooled board to beat.
Read more @ Tom’s Hardware