NVIDIA 920-9N42C-00FB-7C0 | Spectrum-4 64-Port 400G Switch, 25.6Tb/s, 2x 25G SITC The NVIDIA NVLink Bridge 3-slot

The NVIDIA NVLink Bridge 3-slot enables high-speed GPU-to-GPU interconnect for dual Ampere-based RTX A-series professional graphics cards

it accelerates AI development

Confirm your motherboard provides 3-slot center-to-center spacing between the two PCIe x16 slots housing the GPUs

Longer-reach 200G QSFP56 active optical cable for reliable switch-to-switch or switch-to-adapter links across racks

mapping a 200G QSFP56 port to two independent 100G QSFP56 links with near‑zero latency and minimal power draw

NVIDIA 920-9N42C-00FB-7C0 | Spectrum-4 64-Port 400G Switch, 25.6Tb/s, 2x 25G SITC The NVIDIA NVLink Bridge 3-slotThe NVIDIA MSN5400 Spectrum 4 switch delivers 64 ports of 400GbE in a dense 2U form factor, ideal for hyperscale data center fabrics, AI infrastructure, and high performance computing deployments. Built on the Spectrum 4 ASIC, it offers 25. 6 Tbps throughput and 33. 3 Bpps wire speed forwarding with low cut through latency. This model includes Cumulus Linux authentication, dual AC power supplies, and power to connector airflow for efficient cooling.