48U MGX / DC busbar
Four 10U DGX B300 nodes with DC busbar power distribution and an active rear-door heat exchanger.
ZXO B300 / RACK EXTERIOR CONCEPT
ROSSO.
At rack scale.
Four systems.
One unmistakable presence.
The red diagonal grille. The graphite frame. The ZXO signature, brought together in a high-density rack design study.
Explore all 12 views View the high-end reference configurationRED METAL / GRAPHITE / RACK-SCALE IDENTITYDiscover the design
THE ZXO B300 COLLECTIONExplore the single-server exterior
HIGH-END DGX B300
PLANNING REFERENCE
32GPUs across four nodes
Up to 16 TBAggregate system memory
122.88 TBRaw data / cache NVMe
01 / FROM NODE TO RACK
A single identity.
A larger canvas.
The B300 high-density rack carries the ROSSO design language across four server fronts within one graphite cabinet.
The faceted red surrounds and diagonal mesh create a repeatable rhythm. Dark service areas separate each system, while slender red accents connect the full-height frame.
Look closer at the detailsTHE FACE
Red diagonal ribs over dark honeycomb mesh.
THE FRAME
A restrained graphite cabinet with red perimeter accents.
THE SIGNATURE
ZXO identity repeated across the four-system composition.
02 / FORM & SURFACE
Red, in rhythm.
Black, in depth.
The rack finds its character in the relationship between each server front and the structure around it.
The node becomes the pattern.
Red metal edges, black mesh and a distinct service band give each server its own place within the cabinet.
A precise outer line.
The graphite structure provides a calm boundary for the repeating red fronts, with small accents defining the full-height silhouette.
03 / THE PLANNING BRIEF
Four systems.
A considered whole.
This study explores the exterior of a four-system B300-class deployment. The packaging brief connects the visual direction to the wider infrastructure conversation.
PROPOSED RACK DIRECTIONZXO B300
ZXO B300
High-Density Rack
The front composition keeps four server faces legible within one cabinet. Side and rear views explore the surrounding enclosure and proposed cooling zone.
View the B300 server study- Exterior direction
- ROSSO / red and graphite
- System composition
- Four server-front concepts
- Planning target
- Four eight-GPU B300-class nodes / 32 GPUs
- Cabinet expression
- Full-height graphite frame with red accents
- Development stage
- Exterior and deployment design study
The 32-GPU figure is a planning target based on four eight-GPU nodes, not a measured or confirmed ZXO rack configuration. Power and cooling capacity are defined during system and site engineering.
FOUR-NODE RACK / HIGH-END REFERENCE
High-End Reference
Configuration.
A four-node planning reference based on NVIDIA DGX B300 hardware and its highest listed system-memory option. It provides a configuration brief for the ZXO rack exterior study.
Planning reference · Engineering validation pending
| Component | Per DGX B300 node | Four-node rack total |
|---|---|---|
| GPU platform | 8 × NVIDIA B300 Blackwell Ultra GPUs | 32 × NVIDIA B300 Blackwell Ultra GPUs |
| Nominal GPU-memory capacity¹ | 2,304 GB HBM3e (8 × 288 GB) | 9,216 GB HBM3e (32 × 288 GB) |
| Host CPUs | 2 × Intel Xeon Platinum 6776P | 8 × Intel Xeon Platinum 6776P |
| Physical CPU cores | 128 cores (2 × 64) | 512 cores (8 × 64) |
| System-memory upper option | Up to 4 TB per node; 2 TB default | Up to 16 TB aggregate across four nodes |
| Boot storage | 2 × 1.92 TB M.2 NVMe / 3.84 TB raw | 8 × 1.92 TB M.2 NVMe / 15.36 TB raw |
| Local data / cache storage | 8 × 3.84 TB E1.S NVMe | 32 × 3.84 TB E1.S NVMe |
| Raw data / cache capacity² | 30.72 TB | 122.88 TB |
| Compute-network adapters | 8 × NVIDIA ConnectX-8; up to 800 Gb/s each | 32 × NVIDIA ConnectX-8; up to 800 Gb/s each |
| Storage / management DPUs | 2 × dual-port NVIDIA BlueField-3; 400 Gb/s class | 8 × dual-port NVIDIA BlueField-3; 400 Gb/s class |
| NVLink switching | 2 × NVIDIA NVSwitch | 8 × NVIDIA NVSwitch across four nodes |
| GPU interconnect domains | One eight-GPU NVLink domain | Four separate eight-GPU NVLink domains |
| Node-to-node network | InfiniBand / Ethernet compute fabric | InfiniBand / Ethernet between the four nodes |
| Reference node envelope | 10U | Four 10U nodes within a 48U MGX rack |
58 kW average / 76 kW peak
Four-node DC deployment estimates from NVIDIA’s data-center guide. These are planning values; they are not measurements of the ZXO concept or a benchmark of the maximum-memory option.
¹ GPU capacity follows the hardware guide’s nominal 288 GB per GPU listing. NVIDIA’s DGX B300 product page separately lists 2.1 TB total GPU memory; confirm delivered capacity and the reporting basis with the supplier.
GPU and CPU-memory figures are sums across devices and nodes, and do not establish one unified memory pool. ² Raw NVMe capacities exclude RAID, filesystem and usable-capacity overhead. Data/cache capacity and boot capacity are listed separately.
The ZXO exterior remains a concept. Final components, rack fit and system integration require engineering validation before a delivery specification can be confirmed.
Reference sources: NVIDIA DGX B300 hardware guide ↗ · NVIDIA product specifications ↗ · NVIDIA data-center deployment guide ↗ · Intel Xeon 6776P specifications ↗
Discuss this rack reference
04 / BEYOND THE FRONT
The full rack
deserves attention.
A rack-scale project also starts with service access, airflow, power distribution and the installation environment. The rear and side studies give these areas a place within the design conversation.
Discuss your installation05 / THE COMPLETE VISUAL STUDY
Twelve views.
One rack-scale vision.
Explore the cabinet from every side, move into the material details, then see the design in wider settings. Select an image to enlarge it or open the original PNG.
Twelve AI-generated exterior visualizations. Full-resolution originals are available in the image viewer.
06 / START WITH THE REQUIREMENTS
Your workload.
A wider perspective.
Tell us about your applications, rack density, networking and installation site. We’ll start with the requirements and help define the next steps.