It cools everything, not just the chip
GPUs, VRMs, NICs, DIMMs sit in dielectric fluid. No per-SKU cold plate, no fans, no hot spots — up to 50 kW per tank.
MDCX Immersion Cooling is a line of three single-phase immersion container blocks for PCIe inference fleets, from 200 kW to 400 kW IT. Choose by pad length and whether the UPS boundary sits inside the box.
Heat sits across the whole card — GPU, VRM, NIC, DIMM. A dielectric bath picks it up without a cold plate per SKU, up to 50 kW per tank. SXM / NVLink training density belongs on Liquid Cooling.
GPUs, VRMs, NICs, DIMMs sit in dielectric fluid. No per-SKU cold plate, no fans, no hot spots — up to 50 kW per tank.
Warm oil to a facility loop. Where peak dry-bulb stays ≤ 24 °C, dry coolers reject all heat — no compressors, PUE about 1.05. Hotter sites add a hybrid chiller for peaks only and are not 1.05.
Each A32 tank carries dual CDUs in 2N. A pump or CDU can be swapped without draining the tank; a single failure does not stop the servers.
| I400C45 | I400C40 | I200C20 | |
|---|---|---|---|
| IT | 400 kW | 400 kW | 200 kW |
| GPU | up to 512 Pro 6000 Server Edition | up to 512 Pro 6000 Server Edition | up to 256 Pro 6000 Server Edition |
| Box | 45 ft | 40 ft | 20 ft |
| Tanks | 8 | 8 | 4× A32 |
| UPS | Inside the box | Outside the box | Outside the box |
| Built for | Complete pack with power | You already have distribution | Smallest inference bay |
If a 45 ft box will not fit, I400C40 keeps the same eight tanks in 40 ft. I200C20 is four A32 tanks in 20 ft — an edge bay, not a half-size hall.
Start with I400C45 — switch to I400C40 in the wizard if the UPS stays outside.