CDU: The Most Underrated High-Value Core of AI Liquid Cooling Systems

30-40% of the Budget, 67% Price Hikes: Why the CDU—Not the Cold Plate—Owns Liquid Cooling Value

Although most people focus on GPU cold plates, the CDU is the real cost driver of liquid-cooled cabinets, accounting for 30-40% of total liquid cooling budget and serving as the only device synchronously controlling coolant temperature, flow and pressure through pressurization, temperature regulation and flow distribution, with unit prices rising 67% across NVIDIA GB300 and VR200 generations. The circulating pump is the most expensive single component at 25-35% of cost, supporting 7×24 operation, zero leakage and over 50,000-hour MTBF with dual-pump redundancy. NVIDIA's 800V high-voltage DC architecture overturns traditional AC pump solutions, creating a reshuffling breakpoint. EXTRCOOL provides one-stop liquid cooling solutions.

More information

Details

Area 51, NV, USA

EXTRCOOL INDUSTRY LIMITED

Associated Trend items

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...

More information

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...

More information

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...

More information

Products associated

water cooling system

Compare

Remove all

Compare up to 10 products