In-rack liquid-cooling hardware (cold plates, manifolds, QDs, rack CDUs)
BOTTLENECKCoolIT and a few fabricators hold the only qualified capacity for rack CDUs and QDs, so AI rack rollouts can outpace second-source output.
Cold plates, manifolds, quick-disconnects, and rack CDUs supplied with compute systems. Determines whether high-density AI racks can operate within thermal limits. Cold-plate fabricators capture premium on custom work; QD and CDU supply is binding capacity constraint.
Liquid-cooling hardware supplied as part of the compute system, including cold plates on GPU/CPU packages, in-tray and in-rack manifolds, blind-mate quick-disconnects (QDs), and rack-level coolant distribution units (CDUs); distinct from the facility cooling supply chain in L3.5.
What the evidence shows
Standard lead times are 16-24 weeks for CDUs and 12-16 weeks for cold plates under normal production conditions.
thecoolingreport.comLead times currently run 12-18 months for quality CDUs.
mlq.aiWho controls it
No independently verified market-size figure is published for this node yet.
Where it sits in the stack
Takes in: Copper/aluminium cold-plate stock, manifold tubing, blind-mate QD couplings, rack CDU pumps and heat exchangers, coolant
Sends on: Direct-to-chip liquid loop integrated into the server tray and rack, transferring GPU/CPU heat to the facility cooling loop (L3.5)
Related nodes
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