NVIDIA
Supermicro 4U Liquid / 8U Air — HGX B300 8-GPU Server
NVIDIA HGX B300 8-GPU Blackwell Ultra server — 2,304 GB HBM3e per node on a Supermicro platform, offered as a 4U liquid-cooled NVL8 or an 8U air-cooled build.
8-GPU NVIDIA HGX B300 (Blackwell Ultra) server on Supermicro’s NVL8 platform. Eight B300 GPUs deliver 2,304 GB of HBM3e per node — 288 GB and roughly 8 TB/s per GPU — over a fifth-generation NVLink baseboard at 1.8 TB/s per GPU, with NVIDIA ConnectX-8 SuperNICs providing 800 Gb/s of scale-out fabric per GPU for frontier-scale training and inference. Shipped as a 4U liquid-cooled NVL8 or, where air cooling is preferred, an 8U 800G chassis. Configuration and availability confirmed at quote.
Specifications
Platform specification
| GPU architecture | NVIDIA B300 (Blackwell Ultra) |
|---|---|
| GPUs per node | 8× NVIDIA HGX B300 |
| GPU memory | 288 GB HBM3e per GPU · 2,304 GB per node · ~8 TB/s per GPU |
| NVLink fabric | 5th-gen NVLink baseboard · 1.8 TB/s per GPU |
| GPU board power | 8× ~1,100 W B300 (≈8.8 kW GPU baseboard) |
| Unit of sale | 8-GPU node |
| Condition | New |
Fixed by the platform — these figures do not vary between builds.
Configuration — by unit · options current as of
| 4U liquid-cooled (NVL8)part no. not confirmed | 8U air-cooled (800G)SYS-822GS-NB3RT | |
|---|---|---|
| Form factor | 4U rack | 8U rack |
| Cooling | Direct liquid-cooled NVL8 | Air-cooled, 800G chassis |
| Power supplies | confirm at quote | 2× 6,600 W Titanium-level redundant |
Configured to order, confirmed on request: CPU · System memory · Boot device · Scale-out networking · Warranty.
We hold this platform in more than one supplier configuration — the table shows what differs between them. Tell us your requirement and we will confirm the exact unit, build, and warranty at quote.
Last updated
Request a quote for NVIDIA HGX B300 (Supermicro 8-GPU)
Tell us your requirements and we'll get back to you with availability and pricing.
or reach us directly at