Supermicro Begins Shipping Liquid-Cooled Nvidia Vera Rubin NVL72 Rack Systems
Supermicro has officially begun shipping Nvidia Vera Rubin NVL72 liquid-cooled rack systems for large-scale AI data center deployments. The deployment is delivered as a turnkey Data Center Building Block Solution (DCBBS) featuring 1.8MW in-row Coolant Distribution Units (CDUs) and integrated networking services. This hardware milestone accelerates the commercial rollout of next-generation AI supercomputing infrastructure powered by HBM4 memory. It enables data centers to efficiently scale compute capacity from megawatt up to gigawatt levels while managing high thermal loads through advanced liquid cooling. A single scalable unit blueprint covers 16 compute racks containing 1,152 Rubin GPUs and 331TB of HBM4 memory, complete with matching cooling, power, storage, and networking infrastructure. Each NVL72 rack unifies 72 Rubin GPUs and 36 Vera CPUs over sixth-generation NVLink into a massive shared-memory fabric.
## BACKGROUND
Nvidia's Vera Rubin NVL72 is a rack-scale AI supercomputing architecture designed for complex AI training and agentic reasoning workloads. Because modern high-density hardware with HBM4 memory generates immense heat, traditional air cooling is insufficient. Coolant Distribution Units (CDUs) are essential liquid cooling systems that circulate fluid in closed loops to manage heat in high-density data centers.