Lenovo · Rack Scale AI
NVIDIA GB300 NVL72
Rack-scale NVIDIA GB300 NVL72: 18 nodes (1U hybrid liquid-cooled compute trays, each with 2x Grace CPUs and 4x B300 GPUs) and 9 NVLink switch trays in a 48U MGX rack, about 135 kW per rack.
| OEM | Lenovo |
|---|---|
| Family | Rack Scale AI |
| Generation | Blackwell Ultra |
| Released | 2026 |
| Form factor | Multi-node 48U |
| Processor sockets | 2 |
| Processor | NVIDIA Grace (Arm Neoverse V2) |
| Max cores per CPU | 72 |
| Max cores per server | 144 |
| Max CPU TDP | 300 W |
| DIMM slots | Not published |
| Memory type | LPDDR5X, up to 4266 MT/s |
| Max memory | 960 GB |
| Drive bays | Per compute tray: up to 8x E1.S PCIe 5.0 NVMe SSDs (internal, non-hot-swap) plus 1x M.2 NVMe boot SSD |
| Max NVMe / 3.5" bays | 8 / 0 |
| GPUs | Per compute tray: four NVIDIA Blackwell Ultra B300 SXM GPUs (288GB HBM3e, 1100W each); 72 GPUs and 36 Grace CPUs per rack in one NVLink 5 domain |
| PCIe slots | 3 (PCIe Gen5) |
| OCP 3.0 slots | Not published |
| Power supplies | up to 5,500 W, redundant |
| Management | ASPEED AST2600 BMC + NVIDIA HMC (Redfish/IPMI), Lenovo Confluent |
| Suited to | AI training, AI inference, HPC |
Official sources:
https://lenovopress.lenovo.com/lp2357-lenovo-nvidia-gb300-nvl72-rack-scale-ai ↗
Spec sheet: https://lenovopress.lenovo.com/datasheet/ds0207-lenovo-nvidia-gb300-nvl72 ↗