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CDU 1 InRack Cooling Distribution Unit

DCX HYDRO CDU I is a rack based Coolant Distribution Unit designed to cool individual high density server racks. A Compact 4U CDU equipped with unique immersion pumps, delivers 120kW heat transfer capacity which supports over 80 servers. A perfect solution that provides responsive, high-capacity cooling for HPC or GPU server nodes, and it only requires ASHRAE W3/W4 warm water to solve all cooling challenges with power – dense racks. CDU features redundant pump design, dynamic condensation-free control, automatic coolant leveling and automatic leak detection and complete remote control of all important parameters. This CDU combined with DCX Liquid Distribution Manifolds can be integrated into all standard server racks providing exact, optimal cooling performance that your servers need, keeping your operation environmentally sustainable.


Up to 80 servers or 2 server racks per one CDU!


From 120 to more than 150 kW of heat transfer capacity!


Enables heat reuse with up to 60°C return temperature!

Energy Efficiency

Adaptive energy consumption up to 2kW per 2 server racks


DCX provides a complete selection of cost-effective but enterprise-class Coolant Distribution Units (CDUs) designed specifically for hydro miners and direct liquid cooling systems, including complex and power-hungry hydro mining models. We provide a variety of CDU systems that are precisely engineered to fulfill individual needs, catering to both small-scale and large-liquid cooling applications.

Our options include the in-rack CDU 1 and 2 types, as well as CDU 3, 6, 9, and 12, with rated capacities ranging from 300kW to 1200kW per CDU system. These CDUs are designed mainly to support high-powered miners or mining servers. They have sophisticated features such as variable-speed pumps, thorough condensation control, cooling loop separation, redundant components, adaptive operation, energy-efficient cooling, and intelligent controls, which enable full system remote control.

DCX CDUs are freestanding, rack-based Coolant Distribution Units that serve a crucial role in both direct chip cooling (DLC) and hydro-cooling systems. These CDUs, with rated cooling capacities ranging from 300 to 1200 kW, provide adaptive and efficient cooling for hydro miners while maintaining complete condensation control.

Designed to regulate the flow and temperature of coolant, DCX CDUs guarantee that every component in the cooling loop receives an ample supply of flow to maintain the desired operating temperature. They also play a pivotal role in monitoring the coolant temperature, adjusting the flow rate as needed to keep the temperature below the dew point, and safeguarding precious electronics from condensation. DCX CDUs excel at effectively separating the facility circuit and secondary circuit. This feature enables regulated fluid quality, ensuring that cooling fluid volumes in a data center setting are maintained to a minimum. The fluid’s flow, pressure, and temperature are continuously monitored to ensure proper fluid quality maintenance.

Some of the key features of a DCX CDU include:
• High Flow Rate: Engineered to deliver a substantial coolant flow rate,  ensuring that every component in the cooling loop receives a sufficient supply of coolant.
• Full Remote Monitoring: Equipped with temperature, flow, and operation sensors, it monitors coolant temperature and adjusts the flow rate as needed to maintain consistency.
• Redundancy: Designed with redundant pumps and other components, guaranteeing the cooling system’s continuous operation in the event of a failure.
• Energy Efficiency: CDUs are crafted for energy efficiency, incorporating features like variable-speed pumps and advanced control systems that work to minimize energy consumption.

Our Coolant Distribution Units are essential elements in the functioning of direct liquid cooling and hydro systems in data centers. They allow to maintenance of the optimum operating temperature, ensure dependability, and improve the cooling system’s efficiency.


  • Supports twice as many servers, CPU’s and GPU’s than other CDU’s
  • Multi-stage immersion pumps deliver twice the pressure and flow rate of standard pumps.
  • Enterprise-class system high availability & redundancy
  • Adaptive efficiency, loop separation and condensation control.
  • Complete portfolio of 7 CDUs tailored to meet diverse cooling requirements
  • Wide range of systems, ranging from 100kW per 1 rack to 5MW and 100 server racks per single CDU.
Get the SpecsheetGet the Quote
Ninja Column 1Ninja Column 2Ninja Column 3Ninja Column 4Ninja Column 5
Product modelCDU 1
Coling capacity [kW]120
Approach temperature [°C]1010
Operation conditionPrimary sideSecondary sidePrimary sideSecondary side
CoolantFacility waterDI-waterPG-25PG-25
Flow [m3/h]6666
Output rated dP (bar)/≥1.0/≥1.0
Rated inlet temperature [°C]3559.43560.7
Rated outlet temperature [°C ]49.44550.745
Cooling capacity margin43%8%
Transport weight [kg / lbs]95 / 209.4
Operation weight [kg / lbs]118 /260.1
Height [mm] | Width [mm] | Depth [mm]178 | 484 | 1052
FWS liquid connector style and dimensionTri-Clamp 1.5"
TCS liquid connector style and dimensionTri-Clamp 1.5"
Max. Power consumption [kW]2
T-V coefficient [C*L]3.8×10⁴
Power specifications2×1P AC220V 50/60Hz
Working environment T&H0~50C°/ RH5~85%
Noise Level [dB]65


  • Supports twice as many servers, CPU’s and GPU’s than other CDU’s
  • Multi-stage immersion pumps deliver twice the pressure and flow rate of standard pumps.
  • Enterprise-class system high availability & redundancy
  • Adaptive efficiency, loop separation and condensation control.
  • Complete portfolio of 7 CDUs tailored to meet diverse cooling requirements
  • Wide range of systems, ranging from 100kW per 1 rack to 5MW and 100 server racks per single CDU
Get the SpecsheetGet the Quote

System Build

CDU 1 InRack Cooling Distribution Unit

The In-Cabinet Coolant Distribution Unit (CDU) boasts a rated cooling capacity of 120kW. This system is capable of handling up to 80 servers, with adaptive energy usage of up to 2kW for two server racks. From 120 to over 150 kW of heat transfer capacity, allowing heat reuse at up to 60°C of return temperature. Designed to satisfy today’s most demanding requirements. It is a best high-efficiency heat exchanger on the market to regulate processor and component heat.

The system has a clamp connection for easy and quick installation. With the double pump redundancy design, replacement and maintenance are simple, ensuring great dependability. Maintenance can be performed without a shutdown in the case of a pump or power outage, or if the filter gets clogged. Furthermore, the system has a complete real-time monitoring feature for operating parameters. Its top computer connection interface includes two redundant RS485 ports and two redundant RJ45 ports, which use the default communication protocols Modbus RTU and Modbus TCP/IP.

Steel cover to prevent contamination, with spill prevention components.
All-steel enclosure big enough to house up to 400kg of dielectric fluid and miners. Building block for the rack or scale-out container installations. Enables high-temperature mining for the best heat transfer parameters. No more plastic boxes that can crack, leak or melt anytime, no more problems with temperature limits, no more problems with grounding.
L shaped frames to mount external components – switchgear, monitoring systems or PSUs. Placement of PSU outside of the immersion bath requires more retrofitting for the miners, but enables even bigger density and higher temperature for better heat exchange.
IP40 switchgear box for 10-12 3-4kW miners. Contains: 10-12 x overcurrent protection, circuit breaker, cable fittings, terminal blocks, cabling. We use top class Schneider, Eaton, Legrand or Siemens components.
Miner stack area. Sized carefully taking into account various miner types. Allows for flexible placement of different miners. Including: 15x Whatsminer M20/M30/M31 12x Whatsminer M21 8x Antminer S17+ / S17e / T17+ 8x Antminer S19 / S19PRO / T19 10x Innosilicon A10 PRO / A9 / A6 23x Innosilicon A10 (500M) 18x Antminer S9SE / S9K 20x Antminer S9I / S9J 8-16 x Mining rig with up to 12 GPU each 6-7x Hummer H1 Miner 5x Antminer K5 CKB Eaglesong 8-16 GPU rigs with 12GPU each (96-192GPUS)
ThermaSafe R™ Dielectric Engineered Fluid Best priced, 2 times better than recognized Bitcool BC-888 ASIC miner dielectric coolant. Dielectric, odorless, non-toxic, non-allergenic, long-life, eco friendly and safe HTF (Heat Transfer Fluid). Designed specifically for crypto mining operations, compatible with most ASIC, GPU and electronic equipment.
Filling kit. Flexible miners require more effort on fluid control. We want all the fluid to go through the miners not around. To enable a higher pressure drop around the miners we deliver filling kits which direct the fluid through the miners.

Sustainable high performance computing

As computing power constantly increases, liquid cooling becomes a necessary solution to replace conventional air cooling. DCX HYDRO stands out as the most powerful, compact, sustainable, and energy-efficient data center cooling technology available today.

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We will advise, guide and support – the ideas are always free of charge!

Get your custom solution:

We need basic information to design custom liquid cooling system:

  • Quantity and general specification and dimensions of servers, ICT systems or other to be cooled components, along with power allocation per device or rack.

  • Brief overview of your project along with your main objective: better performance, water savings, energy efficiency, heat reuse, higher density?

  • Preferred liquid cooling technology: direct chip – coldplate system or immersion solution? Planned heat rejection or heat recovery strategy.

  • Country & city nearby planed location for climate data, heat transfer performance & shipping cost estimate.

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Sustainability is in our DNA. Let's change the IT and we will change the world. Together.

We build smart and affordable liquid cooling systems for datacenters and high performance computing.

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We’re DCX, a team of liquid cooling experts. We pride ourselves on being at the forefront of sustainable innovation, developing a unique and smart solutions for data center and telecommunication sector. Our goal is to create future industry standards in liquid cooling technology and to transform the industry forever.


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