It unlocks the density
A plate on the GPU carries heat out through water — up to 220 kW/rack across this line.
MDCX Liquid Cooling is a line of three factory-built, cold-plate container blocks for SXM-class GPU density, from 450 kW to 1,800 kW IT. Choose by floor, rack density, and whether the UPS boundary sits inside the box.
GB300 NVL72 and HGX B300 put the heat on the GPU package. A cold plate is the short path from that package to water — the regime NVLink training needs and air cannot reach. Boards that dump heat across VRMs and NICs belong on Immersion Cooling.
A plate on the GPU carries heat out through water — up to 220 kW/rack across this line.
Warm-water loops (single 26 °C, or dual GPU 36–45 / in-row CW 10/15) let dry coolers do most of the rejection. Mechanical refrigeration is trim, not the main plant.
Loops, leak detection, redundant pumps live inside a tested standard module. You take the density without owning the integration risk.
| L1240C45 | L1800C45 | L450C20 | |
|---|---|---|---|
| IT | 1,240 kW | 1,800 kW | 450 kW |
| GPU | up to 576 GB300 | up to 576 Vera Rubin | up to 216 GB300 |
| Density | 150 kW/rack | 220 kW/rack | 150 kW/rack |
| Box | 45 ft | 45 ft | 20 ft |
| Loop | Single 26 °C | Dual GPU 36–45 / in-row CW 10/15 | Dual GPU 36–45 / in-row CW 10/15 |
| UPS | Inside the box | Outside the box | Outside the box |
| Built for | Site has nothing yet | Out of floor, not power | Edge / first block |
Where the site will not permit lithium batteries inside the compute enclosure, pick a SKU with UPS outside (L1800C45 or L450C20). That is a configuration, not a downgrade.
Start with L1240C45 — or pick another code in the wizard.
