What is the ZutaCore HyperCool 240kW Sidecar?
The HyperCool 240kW Sidecar is a liquid-to-air heat-rejection unit for ZutaCore's two-phase direct-to-chip system. Dielectric fluid boils at processor cold plates, then the sidecar condenses the vapor and rejects the heat into data-hall air. This avoids a facility-water connection in the white space, which can suit an existing air-cooled building. It does not make the heat disappear: room air handlers and the central plant must still remove as much as 240 kW of added sensible heat from the sidecar exhaust. ZutaCore says one unit can support two 120 kW racks or four 60 kW racks. It also reports 0.3 liters per minute per kilowatt, N+1 hot-swappable pumps and fans, remote monitoring, and data-center-infrastructure-management integration. Those are announced design claims; the August 2025 source does not provide an independent test report, full fan curve, acoustic data, dimensions, weight, electrical demand, or performance versus room-air temperature. Compare it with a water-connected coolant distribution unit only after including sidecar fan energy and the facility energy needed to cool its discharge air. Confirm exact processor and server approval, cold-plate and refrigerant compatibility, hose routing, rack spacing, fire and refrigerant requirements, and available air-cooling headroom. Ask what capacity remains during a fan or pump change, how hot air is contained, and whether controls can coordinate with the room system. Availability, lead time, warranty boundaries, and field references also need written confirmation because the source describes an announced product.