Compal Electronics subsidiary Rayonnant Technology has launched a full line of coolant distribution unit (CDU) products for AI servers, covering liquid-to-air sidecar, in-rack, and in-row liquid-to-liquid solutions. The rollout gives the Taiwan-based electronics group a deeper in-house role in liquid cooling as rack power densities increase across AI factories, large-scale training clusters, and high-performance computing (HPC) environments.
Rayonnant said that it has moved from developing PC chassis into liquid cooling as demand grows for infrastructure that can support next-generation AI systems. Compal explained that AI infrastructure planning now has to account not only for computing performance, but also for power supply and cooling.
The company said that deployment efficiency, manageability, and maintenance have become key factors in determining whether AI environments can scale reliably. Its CDU lineup includes hot-swappable pump redundancy, non-disruptive maintenance, and a standardized management interface, which Rayonnant said can reduce operational risk and service interruptions in mission-critical settings.
For hyperscale data centers, cloud service providers (CSPs), and large AI cluster deployments, Rayonnant is offering in-rack and in-row CDU systems. For enterprises and research institutions that want liquid cooling without chilled-water infrastructure, the firm is also providing the C50 Liquid-to-Air Sidecar CDU.
Rayonnant said the C50 supports up to 50kW of cooling capacity and can be deployed without major changes to existing machine rooms or the construction of a chilled-water system. The company said its lineup now ranges from sidecar units to multi-megawatt in-row liquid cooling platforms, covering customer needs from enterprise AI projects to large AI factory deployments.
Article edited by Lily Hess
