Supermicro’s BigTwin® multi-node server system has received official certification from Intel for immersion cooling, marking a first-of-its-kind achievement in the server industry. The certified system, featuring 4th and 5th Gen Intel® Xeon® Scalable Processors, complies with the Open Compute Project (OCP) guidelines for immersion material compatibility, ensuring broad interoperability and operational reliability for submerged deployments. The certification follows extensive testing with Intel and immersion ecosystem partners, including tank and fluid providers.
The certified BigTwin system—model SYS-221BT-HNTR—delivers high-density compute power with four hot-swappable nodes in a 2U chassis, supporting up to 4TB of DDR5 memory and dual PCIe 5.0 slots per node. Submerging these systems in dielectric fluid significantly reduces cooling power requirements by eliminating fans and enabling more efficient thermal dissipation, helping data centers achieve PUE values near 1.05. This approach supports denser compute configurations ideal for AI, HPC, and edge applications, while also slashing energy costs and carbon footprint.
Supermicro, a long-time contributor to the OCP immersion subproject and a member of the OCP Advisory Board, is positioning the certified BigTwin system as a foundation for next-generation sustainable infrastructure. The company’s collaboration with Intel and the broader immersion ecosystem has helped formalize best practices and standards for safe, reliable, and scalable immersion cooling at the data center level.
- Intel certifies Supermicro BigTwin for immersion cooling under new industry standards
- System meets OCP immersion cooling specifications for compatibility and safety
- Immersion setup tested with 5th Gen Intel Xeon CPUs, delivering high performance with minimal cooling overhead
- Design eliminates internal fans, reducing server power draw and enabling near 1.0 PUE
- Supermicro’s architecture supports AI, HPC, and dense edge workloads
“Certifying our BigTwin server for immersion cooling within the Intel and OCP guidelines and practices ensures customers that their Supermicro server will be fully functional when immersed in the specified liquid,” said Ray Pang, SVP of Technology Enablement at Supermicro.







