Overview
Supermicro SRS-GB300-NVL72 delivers extreme AI performance with 72 NVIDIA B300 GPUs and 36 NVIDIA Grace CPUs via GB300 Grace Blackwell Superchips, providing up to 21TB HBM3e GPU memory, 17TB LPDDR5X system memory, 144 E1.S PCIe 5.0 bays, and 1.8TB/s NVLink interconnect inside a liquid-cooled 48U rack engineered for next-generation hyperscale workloads.
Specifications
Model Number: SRS-GB300-NVL72
Brand: Supermicro
Alt Part Number(s): SRS-GB300-NVL72
Product Type: Server
Technical Description
Brand: Supermicro
Model: SRS-GB300-NVL72SRS-GB300-NVL72SRS-GB300-NVL72SRS-GB300-NVL72SRS-GB300-NVL72
Form Factor: 1U, GPU Servers
GPUs: 72 NVIDIA B300 GPUs via NVIDIA GB300 Grace Blackwell Superchips
CPUs: 36 NVIDIA Grace CPUs via NVIDIA GB300 Grace Blackwell Superchips
GPU memory: Up to 21 TB HBM3e
System Memory: Up to 17 TB LPDDR5X
Storage: Up to 144 E1.S PCIe 5.0 drive bays
Nodes: 18x 1U ARS-121GL-NB3
Networking: 9x NVLink Switch; 4-ports per compute tray; 1.8TB/s GPU-to-GPU interconnect
Power: 8x 1U 33kW (6x 5.5kW PSUs); total power 132kW
Liquid Cooling: 1x in-rack Supermicro 250kW capacity CDU with redundant PSU and dual hot-swap pumps
Rack Enclosure: 48U; 19”-width
Dimensions: W 600 x D 1068 x H 2236
Compute Fabric: NVIDIA Quantum-X800 InfiniBand; NVIDIA Spectrum-X Ethernet; integrated NVIDIA ConnectX-8 SuperNICs; up to 800Gb/s compute fabric
In-Band Network: Up to 200Gb/s In-Band Management speeds with NVIDIA BlueField-3 DPUs
Out-of-band Network: 1G/10G Ethernet out-of-band management
Liquid Cooling Options: In-Rack CDU: Up to 250 kW capacity with N+1 redundant pumps; In-Row CDU: Up to 1.8 MW capacity with N+1 redundant pumps (supports up to 8 racks); L2A Sidecar CDU: Up to 200 kW capacity with N+1 redundant pumps (no facility water required)
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