In Rack CDU for AI Data Centers | Intelligent Liquid Cooling Distribution Unit

High Efficiency In Rack CDU for AI, HPC and High Density Data Centers

As AI computing, GPU clusters, and high-density servers continue to increase power density, traditional air cooling is no longer sufficient. The In Rack CDU (Cooling Distribution Unit) is designed to deliver precise coolant flow, stable pressure, and intelligent temperature control directly inside the server rack.

Our In Rack CDU integrates pumps, plate heat exchangers, intelligent controllers, sensors, and safety protection into a compact 19-inch rack cabinet, providing reliable secondary coolant circulation for Direct-to-Chip Liquid Cooling and Rear Door Heat Exchanger (RDHx) applications.

Whether deployed in AI data centers, HPC clusters, cloud computing facilities, or enterprise server rooms, the system ensures maximum cooling efficiency while minimizing energy consumption and operating costs.

Why Choose Our In Rack CDU?

High Cooling Performance

Supports high-density server cooling up to 54 kW per rack while maintaining stable outlet temperature and flow.

Intelligent PLC Control

Integrated PLC controller with HMI touchscreen enables automatic operation, alarm management, and real-time monitoring.

Compact Rack Installation

Standard 19-inch rack cabinet design allows seamless deployment inside existing data center infrastructure.

Stable Flow Control

High-efficiency circulation pump ensures continuous coolant delivery with precise hydraulic balancing.

Energy Efficient

Plate heat exchanger design reduces cooling energy consumption while improving heat transfer efficiency.

Easy Maintenance

Modular internal layout simplifies maintenance, replacement, and future system upgrades.

Technical Specifications

Standard Components

Key Features

Intelligent Monitoring

The CDU continuously monitors:

• Coolant Temperature
• Supply & Return Pressure
• Flow Rate
• Pump Status
• System Alarms
• Heat Exchange Performance

Real-time monitoring helps improve reliability and reduces unexpected downtime.

Reliable Cooling for AI Servers

Designed specifically for

• NVIDIA GPU Servers
• AI Training Clusters
• HPC Computing
• Enterprise Data Centers
• Cloud Computing Infrastructure
• Edge Data Centers

Compatible with:

• Direct-to-Chip Liquid Cooling
• Cold Plate Cooling
• Rear Door Heat Exchanger
• Liquid Cooling Manifold Systems

Energy Saving Design

Compared with conventional air cooling systems, the In Rack CDU offers:

• Higher cooling efficiency
• Lower PUE
• Reduced fan energy consumption
• Stable coolant temperature
• Improved server reliability

Ideal for next-generation AI infrastructure.

Optional Configurations

Available options include:

• Redundant Dual Pumps
• Dual Power Supply
• EC Variable Speed Pumps
• Modbus RTU / TCP Communication
• BACnet Integration
• Leak Detection System
• Water Quality Monitoring
• Automatic Pressure Control
• Remote Monitoring via Ethernet

Applications

The In Rack CDU is widely used in:

• AI Data Centers
• GPU Computing Centers
• Cloud Computing Facilities
• HPC Clusters
• Financial Data Centers
• Internet Service Providers
• Telecom Data Centers
• Government Computing Centers
• Research Institutes

Benefits

✔ High Cooling Capacity

✔ Intelligent PLC Control

✔ Compact Rack Design

✔ Easy Installation

✔ Low Operating Cost

✔ High Reliability

✔ Energy Efficient

✔ Low Maintenance

✔ OEM & ODM Supported

Frequently Asked Questions

What is an In Rack CDU?

An In Rack CDU (Cooling Distribution Unit) is a liquid cooling system installed inside a standard server rack. It transfers heat between the facility water loop and the secondary coolant loop while supplying temperature-controlled coolant to liquid-cooled servers.

What cooling technologies are supported?

The system supports Direct-to-Chip Cooling, Cold Plate Cooling, Rear Door Heat Exchangers (RDHx), and other liquid cooling solutions for high-density IT equipment.

Can the CDU be customized?

Yes. We provide customized cooling capacity, pump redundancy, communication protocols, power configurations, cabinet dimensions, and control software to meet project-specific requirements.

Request a Quote

Looking for a reliable In Rack CDU manufacturer for your AI or high-density data center project?

Our engineering team can provide:

• Custom cooling capacity design
• OEM & ODM manufacturing
• Project consultation
• Technical drawings
• Fast quotation
• Global delivery
• Professional after-sales support

Contact us today to get a customized In Rack CDU solution for your liquid cooling infrastructure.