Iceotope KUL BOX — 24U Sealed Precision Liquid Cooling Cabinet

Specifications

Overview

Iceotope's KUL BOX is a 24U thermal routing cabinet that seals servers in a dielectric fluid loop and rejects the heat through an integrated liquid-to-air cooler. It is the deployment vehicle for Iceotope's precision liquid cooling — a “direct-to-everything” approach in which the coolant passes an internal manifold that runs past every hot component: processors, memory, storage and power supplies, not just the CPU and GPU.

The practical consequence is a fan-less server. With no fans there is no airflow-driven dust ingress and no acoustic signature, so the KUL BOX measures under 40 dB — normal-conversation level. That and the sealed design are what let a 24U cabinet with up to four Dell XE7740 or six HPE DL380 Gen11 nodes sit in an edge site, a comms closet or an office-adjacent data room that would never permit a conventional air-cooled rack at that density.

Efficiency comes from removing the air-handling overhead: Iceotope claims up to 83 % lower cooling energy and up to 96 % less water use than air-cooled servers, because there is no evaporative loss and no CRAH/CRAC fan energy to pay for. In lab validation the same technology cooled a 1500 W thermal test vehicle, well past the 400 W ceiling conventionally associated with single-phase cooling, which is what makes it viable for current-generation accelerators. Iceotope also licenses the cooling IP to OEMs and ODMs building next-generation AI hardware.

Key Benefits

Fan-less, sealed chassis removes dust ingress, fan failures and acoustic limits. Under 40 dB allows deployment in noise-restricted edge and office-adjacent sites. Up to 83 % lower cooling energy and 96 % less water versus air cooling. Cools every component — CPU, GPU, memory, storage and PSU — not just the sockets. 1,500 W single-phase capability covers current high-TDP accelerators. Standard server support (Dell XE7740, HPE DL380 Gen11) avoids proprietary compute.

Applications

Edge AI inference sites and metro data rooms; telco and RAN deployments; high-density GPU compute in noise-restricted buildings; HPC clusters with water-scarcity constraints; research and university compute; colocation cabinets needing above-air-cooling density without facility water.

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