Google Brazos: Rack Liquid Cooling for Legacy Racks
π§ Google announces Brazos, a rack-mounted, closed-loop liquid-to-air cooling solution designed to enable high-density AI and HPC gear within traditional air-cooled data centers. Brazos separates the internal IT liquid loop from facility water, enabling one-rack-at-a-time deployment and avoiding costly chilled-water retrofits. The modular design features three cooling units, integrated rack manifolds, and hot-swappable FRUs for field serviceability, and it fits OCP ORv3 form-factor racks. Google plans to open-source Brazos specifications and encourage industry adoption through forums like the Open Compute Project.