An NVIDIA HGX B300 8-GPU system in 4U with direct liquid cooling, sold and supported by Cisco and managed through Cisco management platforms for AI training and high-density inference.

This server brings NVLink-connected training and highdensity inference capacity to the Cisco AI compute portfolio. The underlying hardware is the Supermicro SuperServer SYS-422GS-NB3RT-LCC, a 4U liquidcooled NVIDIA HGX B300 8-GPU system. Cisco handles the selling motion, support through Cisco CX Services. Supermicro handles liquid cooling maintenance and support services. Lifecycle management through Cisco Intersight or Hyperfabric. Supermicro builds the hardware. Customers get Supermicro’s liquid-cooled GPU engineering and Cisco’s support and operations model in one orderable product.

Figure 1. AI Server for NVIDIA HGX B300, Liquid Cooled
(Supermicro SYS-422GS-NB3RT-LCC)

The system pairs two Intel Xeon processors with an NVIDIA HGX B300 8-GPU baseboard connected over fifth-generation NVLink at 1.8 TB/s per GPU, with 2.3 TB of HBM3e memory across the baseboard. Direct-to-chip liquid cooling moves GPU and CPU heat into facility water and fits the 8-GPU system into 4U instead of the 8U an air-cooled equivalent needs. Target workloads include large-model training, fine-tuning, and high-throughput inference where eight NVLink-connected GPUs per node are required.

Figure 2. Liquid cooled Cluster of AI Servers for NVIDIA HGX B300
(Supermicro SYS-422GS-NB3RT-LCC)

Table 1 summarizes the primary features and benefits of the platform

Table 1. Features and benefits

Eight Blackwell Ultra GPUs, one NVLink domain, four rack units.

Air-cooled HGX B300 servers need 8U and move heat with fans. This system puts the same eight-GPU NVLink domain in 4U by running direct-to-chip cold plates across the GPUs and CPUs. Most system heat leaves through the liquid loop rather than the data center air handlers, which doubles GPU density per rack and reduces cooling energy and noise at the same time.

Scale-out is sized to match: Eight NVIDIA ConnectX-8 SuperNICs give each GPU its own 800 Gb/s east-west port, and an NVIDIA BlueField-3 B3240 DPU carries north-south and storage traffic. In the Cisco offer the platform is deployed with 415 V rack PDUs and an in-rack or in-row coolant distribution unit, so the liquid infrastructure is part of the order, not a separate project.

Cisco offers this Supermicro platform in a defined configuration, listed in Table 2.

Table 2. Cisco selected configuration, SYS-422GS-NB3RT-LCC (HGX B300 liquid cooled)

This is a hardware product; no platform license is required. Cisco Intersight management requires an Intersight license, listed in Table 3.

Table 3. Licensing

Information about Cisco’s Environmental, Social and Governance (ESG) initiatives and performance is provided in Cisco’s CSR and sustainability reporting.

Table 4. Cisco Environmental Sustainability Information

Table 5 reflects the Supermicro data sheet for the SYS-422GS-NB3RT-LCC. Product specifications may change without notice.

Table 5. Specifications, Supermicro SuperServer SYS-422GS-NB3RT-LCC

Table 6 lists what must be in place before installation.

Table 6. System requirements

The base platform is a Supermicro SKU offered through Cisco. Cisco ordering PIDs for the configured system are in progress. To order, contact your Cisco account representative or visit the Cisco Ordering Home Page.

Table 7. Ordering information

Warranty terms for this Cisco-offered Supermicro platform are standard Supermicro warranty terms. Support is delivered through Cisco CX Services under the applicable service contract, contact your Cisco sales specialist for more details.

Cisco and Partner Services

Cisco CX Services covers this platform from planning through deployment and ongoing operations, including liquid cooling maintenance, with a single Cisco support contract even though the hardware is Supermicro-built. For more information, visit https://www.cisco.com/go/services.

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For more on Cisco AI infrastructure, visit https://www.cisco.com/go/ai. Full platform specifications are available on the Supermicro product page for the SYS-422GS-NB3RT-LCC.

Learn more about Cisco and Supermicro partnership:
https://www.cisco.com/site/us/en/solutions/global-partners/supermicro/index.html.