Refined Heat Exchanger (RDHx)
Neurair’s In-Rack CDU is a compact, rack-mounted liquid-to-liquid cooling system designed for AI and HPC workloads. Installed at the base of standard 42U+ racks, it delivers precision cooling through a closed-loop design—
isolating facility water from electronics. Built for rapid deployment, it enables retrofit or new-build installations with minimal footprint.
Advantages
Compact Cooling at the Rack Base
Seamless Retrofit & New Deployments
Closed-Loop Design for Reliability
Integrated directly into the rack footprint, the CDU delivers efficient liquid-to-liquid cooling without external units or major space requirements.
Ideal for tight data halls or scaling AI racks—installs in standard 42U+ enclosures with minimal disruption.
Separates facility water from rack-side coolant (e.g., PG25), protecting sensitive electronics while ensuring thermal isolation and safety.
Why We Need In-Rack CDU
With growing compute density and limited space in modern data halls, the In-Rack CDU provides a compact, efficient cooling solution. Positioned inside the rack, it manages precise thermal loads for AI and HPC systems—supporting both greenfield deployments and retrofits.
Its LCD touchscreen, redundant pumps, and closed-loop separation make it a trusted, production-grade solution for scalable deployments worldwide.
Rack-Based Efficiency
Built directly into the rack structure, eliminating the need for additional floor space or structural changes.
Closed-Loop Safety
Facility water stays outside the rack. Coolant circulates securely inside—improving uptime and protecting hardware.
How it works?
Integrated at the Rack Base
This CDU installs directly within the server rack (typically bottom-mounted), offering localized coolant management.
Precision Loop Management
It separates the secondary coolant loop (to cold plates or RDHx) from the primary loop (to facility water), with tight temperature and pressure control.
LCD Interface & Sensors
Touchscreen control and built-in telemetry allow real-time monitoring and closed-loop control.
Compact and Silent
Fanless and compact, it’s designed for deployment in space-constrained environments like edge and micro data centers.
Retrofit-Friendly
Installs without major rack modification and connects to existing DLC plumbing and facility infrastructure.