CDU (Coolant Distribution Unit)
Definition
A Coolant Distribution Unit (CDU) is a critical component in liquid cooling systems that manages the distribution, monitoring, and control of coolant between the facility cooling system and IT equipment.
CDUs act as an interface between building-level cooling infrastructure and liquid-cooled servers.
Why It Matters
As AI workloads increase rack power density, efficient coolant management becomes essential for reliable liquid cooling operation.
CDUs provide:
- Controlled coolant delivery
- Temperature management
- Flow regulation
- System monitoring
Key Technologies
A CDU typically includes:
- Pumps
- Heat exchangers
- Sensors
- Control systems
- Monitoring interfaces
Applications
CDUs are used in:
- AI data centers
- GPU clusters
- High-performance computing
- Liquid-cooled infrastructure
Related Terms
Related ATTOM Solutions
ATTOM liquid cooling solutions integrate advanced thermal management technologies to support high-density AI infrastructure.
