A complete, factory-integrated NVIDIA GB300 NVL72 rack with 72 Blackwell Ultra GPUs and 36 Grace CPUs in a single NVLink domain, sold and supported by Cisco.

This is rack-scale AI infrastructure ordered as one product. It is Supermicro’s NVIDIA GB300 NVL72 system, each rack contains: 18 1U compute trays, 9 NVLink switch trays, 8 power shelves, and in-rack management networking, integrated and tested as a complete rack before delivery. Cisco offers it under two part numbers that differ only in cooling scope: SRS-GB300-NVL72-M0 is the rack without any coolant distribution unit, for customers whose facility already provides one; SRS-GB300-NVL72-M1 includes in-rack CDUs and support in the offer. Cisco handles the selling motion, support through Cisco CX Services and Supermicro for liquid cooling. Management is done through Cisco Nexus One (Hyperfabric).

Each compute tray is packaged with two NVIDIA GB300 Grace Blackwell Ultra superchips, offering 72 Blackwell Ultra GPUs and 36 Grace CPUs connected through fifth-generation NVLink at 1.8 TB/s per GPU in a single rack. All 72 GPUs operate as one accelerator with roughly 21 TB of pooled HBM3e and about 38 TB of total unified memory including LPDDR5X. Target workloads are frontier-scale training and reasoning-model inference, where a single NVLink domain of this size replaces multi-node clusters. Liquid cooling is integrated into the platform; for information on any liquid cooling components, contact your Cisco sales specialist.

Table 1 summarizes the primary features and benefits of the platform.

Table 1. Features and benefits

The rack is the computer: 72 GPUs delivered as one integrated system.

Most AI infrastructure is bought as servers and assembled into clusters on site. GB300 NVL72 inverts that: the rack is the unit of compute. Seventy-two Blackwell Ultra GPUs and thirty-six Grace CPUs arrive interconnected through nine NVLink switch trays at 1.8 TB/s per GPU, powered by eight 33 kW power shelves, and plumbed for direct-to-chip liquid cooling. What would otherwise be months of integration work is done before the truck arrives.

Cisco removes the remaining friction at the facility boundary. SRS-GB300-NVL72-M0 is for data centers that already operate a compatible coolant distribution unit and just need the rack. SRS-GB300-NVL72-M1 integrates an in-rack CDU and support into the same order. In both cases the liquid cooling scope is specified with your Cisco sales specialist, who can advise on in-rack, in-row, and liquid-to-air sidecar options and provide quotes for liquid cooling products. Cisco and Supermicro support contracts then covers hardware, and support.

Cisco offers this Supermicro platform in a defined rack configuration under two part numbers, listed in Table 2.

Table 2. Cisco selected configuration, NVIDIA GB300 NVL72 rack

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

Table 3. Cisco Environmental Sustainability Information

Table 4 reflects the Supermicro data sheet for the NVIDIA GB300 NVL72 rack. Product specifications may change without notice.

Table 4. Specifications, Supermicro NVIDIA GB300 NVL72 rack

Table 5 lists what must be in place before installation. This is a rack-scale liquid-cooled system; for information on any liquid cooling components, or for a quote on liquid cooling products, contact your Cisco sales specialist.

Table 5. System requirements

The rack is a Supermicro-built system offered through Cisco under the two part numbers below. Certain liquid cooling components, such as in-row CDUs and liquid-to-air sidecards, are quoted separately: contact your Cisco sales specialist for information on any liquid cooling components or for a quote on liquid cooling products specifically. To order, contact your Cisco account representative or visit the Cisco Ordering Home Page.

Table 6. Ordering information

Warranty terms for this Cisco-offered Supermicro platform are standard Supermicro warranty terms: https://www.supermicro.com/en/support/warranty. Support is delivered through Cisco CX Services under the applicable service contract. Please contact your Cisco sales specialist for more details.

Cisco CX and Supermicro Services cover this platform from planning through deployment and ongoing operations, with dedicated support contracts. 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 NVIDIA GB300 NVL72 system.

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