NVIDIA
NVIDIA GB300 NVL72 72-GPU Rack (Supermicro MGX)
NVIDIA GB300 NVL72 rack-scale GPU system — 72 Blackwell Ultra GPUs and 36 Grace CPUs in a single, fully-integrated, liquid-cooled 19-inch Supermicro MGX rack.
NVIDIA GB300 NVL72 rack-scale GPU platform, delivered as a single factory-integrated 19-inch Supermicro MGX rack. Seventy-two GB300 Grace Blackwell Ultra GPUs connect over fifth-generation NVLink into one coherent accelerator — roughly 20.7 TB of HBM3e per rack for the largest AI training and inference workloads, liquid-cooled by an in-rack 250 kW CDU. Factory-integrated and NVLink-domain-complete. Configuration and availability confirmed at quote.
Specifications
| GPU architecture | NVIDIA GB300 (Grace Blackwell Ultra) |
|---|---|
| GPUs per rack | 72× GB300 (18 compute nodes, 4 GPUs each) |
| GPU memory | 288 GB HBM3e per GPU (≈20.7 TB per rack) |
| CPU | 36× NVIDIA Grace |
| NVLink fabric | 5th-gen NVLink · 1.8 TB/s per GPU · 130 TB/s all-to-all in-rack · 9× NVLink Switch Trays |
| Scale-out networking | ConnectX-8 SuperNIC · 800 Gb/s per GPU · Quantum-X800 InfiniBand / Spectrum-X |
| Form factor | Single 48U, 19" NVL72 rack, fully integrated |
| Cooling | Liquid-cooled · in-rack 250 kW CDU |
| Rack power | ≈132–140 kW per rack (liquid-cooled) |
| Rack weight | ≈1.36 t (≈3,000 lb) per rack |
| Condition | New |
| Warranty | 3-yr on-site Next Business Day + liquid-cooling preventive maintenance |
Specifications shown are headline figures. Confirm full configuration details when you request a quote.
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