Rayonnant Expands Compal’s AI Infrastructure Portfolio with Comprehensive CDU Solutions

As AI factories, large-scale AI training clusters, and HPC environments continue to increase rack power density, liquid cooling is rapidly becoming a critical foundation for next-gen AI infrastructure.Rayonnant Technology, a subsidiary of Compal Electronics specializing in liquid cooling infrastructure design and manufacturing, announced a comprehensive portfolio of Coolant Distribution Unit (CDU) solutions, including Liquid-to-Air (L2A) Sidecar, In-Rack, and In-Row Liquid-to-Liquid (L2L) platforms.

The portfolio is designed to help organizations address growing cooling demands while improving operational resilience, deployment flexibility, and long-term scalability.

As AI deployments move from pilot projects to production-scale environments, infrastructure requirements are evolving beyond compute performance alone. Increasing rack densities are placing greater pressure on cooling systems, making thermal management a key factor in ensuring reliable and efficient AI operations.

According to Rayonnant Technology, “AI infrastructure is no longer defined solely by compute performance. As rack densities continue to rise, organizations must consider compute, power, and cooling as a unified system. The ability to deploy, manage, and maintain cooling infrastructure efficiently has become a critical factor in the success of AI environments.”

Rayonnant’s CDU portfolio is designed for continuous operation in mission-critical environments, featuring hot-swappable pump redundancy, continuous-run maintenance capability, and standardized management integration. These capabilities help reduce operational risk while minimizing service interruptions.

For hyperscalers, cloud service providers, and large-scale AI clusters, Rayonnant’s In-Rack and In-Row CDU solutions support scalable liquid cooling architectures that improve deployment efficiency and serviceability. For enterprises and organizations seeking a simpler path to liquid cooling adoption, the C50 Liquid-to-Air Sidecar CDU provides up to 50kW of cooling capacity in a self-contained design that eliminates the need for extensive facility modifications or chilled-water infrastructure.

Rayonnant’s portfolio now spans solutions ranging from sidecar deployments to multi-megawatt row-level cooling platforms, providing customers with a scalable pathway from enterprise AI initiatives to hyperscale AI factory deployments.

Rayonnant Technology stated: “As AI infrastructure continues to evolve, cooling is becoming an increasingly important part of overall system architecture. Our goal is to provide customers with reliable cooling platforms that simplify liquid cooling adoption while delivering the scalability, flexibility, and resilience required for the AI era.”

As a subsidiary of Compal, Rayonnant combines liquid cooling engineering expertise with manufacturing capabilities to support the growing demand for next-gen AI infrastructure.