Liquid Cooling Becomes Essential Infrastructure for AI Computing Development

1400W GB300, 2500W Rubin, $30M Annual Savings: The Physics Making Liquid Cooling Irreplaceable

Liquid cooling has become essential infrastructure for AI computing as new-generation chips—GB300 above 1400W, Rubin over 2500W, Google TPU v7 at 980W—outstrip air cooling. It cuts PUE from over 1.4 to 1.05-1.1, saving a 10MW data center nearly $30 million in annual power costs. The market is projected at $16.5 billion with 59% CAGR, China leading growth. Upstream localization advances across coolant, quick connectors and cold plates, though high-end CDU pump valves remain import-dependent; cold plate dominates, while immersion supports 900kW racks below 1.04 PUE. Policy now mandates PUE and minimum liquid cooling penetration for new large data centers. EXTRCOOL provides one-stop full liquid cooling solutions.

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Area 51, NV, USA

EXTRCOOL INDUSTRY LIMITED

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The CDU, the Heart and Brain Liquid Cooling Cannot Do Without

Silent When Healthy, Fatal When Failing: The Five Selection Questions That Decide Whether the CDU Holds the Loop Together

The CDU plays the role the heart plays: it produces no cold, but without it the coolant never moves. Its heart role pumps and distributes via the manifold, while its brain role senses and controls. Selection answers five questions: total flow above all cold plate minimums, head above maximum loop resistance, exchanger capacity above peak load with fouling margin, redunda...

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The Manifold That Decides Where the Coolant Goes

From CDU to Cold Plate and Back: How the Manifold's Flow Distribution, Not Total Flow, Decides Precision Cooling

Rising AI GPU power is moving liquid cooling from whether it can cool to cooling precisely, and the manifold decides whether coolant reaches every position as it should. It distributes coolant through main channels to parallel branches and collects the heated return, following CDU to supply manifold to cold plate to return manifold to CDU. Poor design lets near-end branc...

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How a Liquid Cooling Manifold Gets Made, from Material to Final Acceptance

316L to Helium Testing: The Four Links—Material, Machining, Cleanliness and Verification—That Decide Manifold Quality

Manifold manufacturing starts with material, and 316L is the safer default, with coolant compatibility outweighing thermal conductivity. CNC machining forms main channels, branches and interface holes, where holding channel positions matters more than drilling; one-piece machining avoids weld deformation, while tube and plate assemblies add laser, TIG or brazing. Deburri...

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