Server rack water cooling unit Alphacool ES 4U 19" – rack-mounted liquid cooling solution

Alphacool ES 4U 19" ServerRack Water Cooling is a rack-mounted liquid cooling unit engineered for 19-inch server racks with a 4U installation height. Designed for continuous operation in data centers, server rooms and laboratory racks, the unit provides server-grade liquid cooling to reduce component temperatures and maintain stable thermal conditions in high-density enclosures. The product integrates with standard rack layouts and supports thermal management of CPUs, GPUs and other heat-generating components when connected to compatible coolant loops and distribution hardware.

Advantages

The Alphacool ES 4U offers compact rack integration and a design focused on reliable, continuous liquid cooling. It minimizes airflow dependency by using circulating coolant to transfer heat away from components, which can improve performance stability and reduce acoustic load compared with air-only solutions. The unit is built for 19-inch racks and a 4U footprint, allowing predictable installation and straightforward integration with existing rack-mounted systems and piping routes.

Suitable for

• High-density server cabinets in data centers
• Server rooms and colocation facilities
• Research and lab racks with continuous operation requirements
• Rack-mounted systems with concentrated CPU/GPU heat sources

Key specifications

• Form factor: 19-inch rack, 4U installation height
• Cooling type: liquid (rack-mounted water cooling unit)
• Designed for continuous 24/7 operation
• Integration: designed to connect to external coolant loops and distribution hardware
• Application: server-grade thermal management for CPUs, GPUs and other high-heat components

How to use

Install the unit into a standard 19-inch rack occupying a 4U space and secure it according to rack-mounting best practices. Connect the inlet and outlet ports to an external coolant loop or distribution panel using suitable tubing and fittings rated for server room use. Fill and purge the cooling loop following the coolant and system manufacturer instructions, verify leak-tight connections, and configure flow and pump settings to match the thermal load. Monitor temperatures and flow during initial operation and adjust loop parameters as required.

Usage recommendations

Use corrosion-resistant coolant and compatible fittings, follow local safety and maintenance procedures, and perform periodic leak checks and fluid quality inspections. Ensure proper ventilation for the rack enclosure and maintain scheduled monitoring to preserve continuous, reliable cooling performance.