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AI supply chain term

Immersion cooling

Immersion cooling submerges servers directly in a non-conductive liquid that absorbs heat from every component at once, instead of using air or cold plates.

What it means

Immersion cooling places entire servers into a bath of dielectric (electrically non-conductive) fluid, so heat is drawn off every component simultaneously rather than through fans or plates on individual chips. Single-phase systems circulate the warm fluid to a heat exchanger, while two-phase systems let it boil and condense to move heat even faster. In the AI supply chain, immersion is a more aggressive form of liquid cooling that targets the highest rack densities, where even cold-plate cooling struggles. By eliminating air handling and packing compute tightly, it can improve energy efficiency and shrink the physical footprint of a cluster. The trade-offs are practical: specialized fluids, tanks, and serviceability requirements change how data centers are designed and maintained. Immersion is thus a lever for extreme density and efficiency, adopted where the thermal and space savings justify the operational change.

Why it matters to investors

Immersion cooling matters to the AI trade as the density ceiling rises beyond what air and cold plates can handle. Cooling-system and fluid suppliers gain exposure as operators chase efficiency and footprint gains, though adoption depends on redesigning how data centers are built and serviced.

Companies on this part of the chain

VertivVRTModine Manufacturing CompanyMODMunters Group ABMTRS.STCoolIT Systems

Named to show where the term sits in the AI supply chain — research, not advice, and never a recommendation to buy or sell.

Related terms

Liquid coolingLiquid cooling uses circulating liquid, typically through cold plates on the chip, to carry heat away from AI accelerators far more efficiently than air.Rack power densityRack power density is the amount of electrical power — and therefore heat — packed into a single data-center rack, measured in kilowatts per rack.High-density rackA high-density rack is a data-center rack engineered to hold far more powerful, hotter AI equipment — and to draw and dissipate far more power per rack than legacy servers.PUE (Power Usage Effectiveness)PUE is a data center's efficiency ratio — total facility power divided by the power that actually reaches the computing equipment.

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THE ENTITY is an educational read on the AI supply chain — research, not investment advice. It explains how the chain works and who sits where, never price targets or buy/sell calls.