Full-Liquid-Cooled AI Racks Reshape the Secondary Loop

Component Value Up 37% to 66,300 Dollars, Penetration From 33% to 53%: Why the Value Chain Is Moving From UQD and Manifold Supply Toward CDU Integration

AI rack power rises from 5 or 10 kilowatts to 132 and 140 for GB300 NVL72 and Rubin removes fans, bringing network, power and optical modules into liquid cooling, and secondary loop rebuilt with more cold plates, blind-mate high-flow UQDs, manifold distribution and megawatt-class CDUs. Excluding the CDU, Vera Rubin cooling component value runs 37 percent above GB300 at 66,300 dollars against 48,300, and chip liquid cooling penetration moves from 33 percent in 2025 to 53 percent in 2026. Cold plates cover GPU, CPU, DIMM and optical modules, UQDs need larger flow and blind-mate sealing. EXTRCOOL provides one-stop liquid cooling solutions.

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Area 51, NV, USA

EXTRCOOL INDUSTRY LIMITED

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CDU at the Core of Liquid Cooling Data Center Thermal Management

30-to-40% of System Cost, 2.6-to-3 MW in Mass Production: How 316L Plate Exchange, N+1 Pumps and Three-Tier Leak Protection Hold ±0.2°C

The cooling distribution unit sits at the center of liquid-cooled thermal management, accounting for 30 to 40 percent of system cost by linking cooling towers, dry coolers and chillers to the secondary server loop through a brazed 316L plate heat exchanger that keeps high-purity deionized water apart from industrial water while handling heat exchange, isolation, precise ...

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EXTRCOOL Builds In-House Manufacturing Capability for Liquid Cooling Cold Plates and Manifolds

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Cold plates, manifolds, connectors and pipes carry barriers in structural design, precision machining, welding and reliability testing, and project delivery faces process control difficulty, capacity fluctuation, supply interruption risk and a DFM gap between design and manufacturing. EXTRCOOL takes outsourced manufacturing of AI compute liquid cooling components with in...

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Manifold Design in Liquid Cooling: Flow Balancing, Structure and Supply Chain

Deviation Under 10%, Orifice Drop at 30-to-50% of Total and 0.1-mm Internal Channels: Why Precision Manifolds, Not CDUs, Are the Schedule Bottleneck

A manifold distributes coolant from the CDU to each cold plate and collects heated liquid back, and the core problem is flow balancing not water splitting, since header pressure changes cause maldistribution, throttling one server and starving another. Standards hold branch flow deviation within 10 percent and imbalance under 15 percent. Three structures: straight-throug...

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