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Silver 1U rackmount switch with two front ports and ventilation grilles

NVIDIA

NVIDIA MQM9790-NS2F 400 GbE 2-port network switch

SKU CH-5Y2D-2YMX1 MPN MQM9790-NS2F

Rack-mountable 2-port switch delivers 400 GbE connectivity with 1720 W power consumption

  • 400 Gigabit Ethernet delivers ultra-fast data transfer across two ports
  • 2-port design simplifies wired network deployment in rack environments
  • 1U rack-mountable form factor organises cabling for professional installations
  • 1720 W power consumption supports high-throughput switching performance
  • Unmanaged operation enables immediate connectivity without configuration overhead

400 GbE switch for high-density racks

The NVIDIA MQM9790-NS2F is a 1U rack-mountable switch that delivers two ports of 400 Gigabit Ethernet connectivity. It is built on the Quantum-2 QM9700 platform for data-centre and high-performance computing environments that require low-latency fabric. Optical fibre and twisted-pair media are both supported for flexible deployment.

1720 W power draw in normal operation

The unit consumes 1720 W during typical use, reflecting the throughput density of its two 400 GbE ports. A rack-mounted power distribution strategy is required to accommodate this continuous load. Acoustic output scales with the internal cooling needed to sustain line-rate switching across both ports.

Sustained line-rate traffic across both ports

Under continuous full-load conditions the switch maintains wire-speed forwarding on each 400 GbE interface without throttling. Thermal design keeps ASIC temperatures stable during prolonged bursts typical of AI cluster interconnects. No performance degradation occurs when both ports operate at maximum capacity for extended periods.

Highlights

  • 400 Gigabit Ethernet delivers ultra-fast data transfer across two ports
  • 2-port design simplifies wired network deployment in rack environments
  • 1U rack-mountable form factor organises cabling for professional installations
  • 1720 W power consumption supports high-throughput switching performance
  • Unmanaged operation enables immediate connectivity without configuration overhead

Specifications

BrandNVIDIA
ModelMQM9790-NS2F
Part NumberMQM9790-NS2F
Shipping weight23.13 kg
Package size1016 × 635 × 254 mm

Questions about this item

How do I mount the MQM9790-NS2F in a standard 1U rack and which step is often missed?

Secure the included brackets to the switch first, then bolt the assembly into the rack; the step installers skip is tightening the rear support screws to prevent the unit from sagging under cable weight.

What component will need replacement first during long-term operation of this 1720 W switch?

The internal cooling fans are the primary wear item; plan to swap them after several years of continuous 400 GbE throughput to maintain airflow.

Which thermal limit appears first when both ports run sustained 400 GbE traffic?

The 1720 W power envelope is the first constraint; exceeding it triggers thermal throttling before port-level bandwidth limits are reached.

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