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Silver rack-mount network switch with 32 OSFP ports and front-to-back airflow

NVIDIA

NVIDIA MQM9790NS2F Quantum-2 32 OSFP network switch

SKU CH-FTZQ-3KY46 MPN MQM9790NS2F

A 32-port OSFP InfiniBand switch delivering 51.2 Tb/s bidirectional throughput and 66.5 billion packets per second

  • FormatRackmount
  • Primary Port Speed40, 56, 100, 200, 400 Gb/s per port
  • Primary Port Type32 x OSFP
  • PowerInput Voltage: 1x/2x, 200-240Vac, 10A, 50/60Hz Global Power
  • Dimensions17.2" (H) x 1.7" (W) x 26" (D) 438mm (H) x 43.6mm (H) x 660m
  • Weight1 PSU: 13.6 kg 2 PSUs: 14.8 kg
  • 64 ports of 400 Gb/s NDR connectivity
  • 2 Tb/s aggregated bidirectional throughput capacity
  • 5 billion packets per second processing performance
  • 32 OSFP ports supporting 40 to 400 Gb/s speeds
  • 640 W typical power with passive cables

Switch purpose and target user

The NVIDIA Quantum-2 switch delivers 32 OSFP ports operating at up to 400 Gb/s each. It is built for high-performance computing clusters and large-scale AI fabrics that need aggregated bidirectional throughput of 51.2 Tb/s and packet rates exceeding 66.5 BPPS.

Who should consider alternatives

Teams that require managed switching features, in-band management tools, or port counts beyond 32 OSFP interfaces should evaluate other platforms. Buyers needing front-to-rear airflow instead of the factory power-to-connector direction must select a different SKU.

Sustained-load behaviour

Typical power draw with passive cables is 640 W, while active-cable configurations can reach 1,610 W under continuous load. The unit operates reliably from 0 °C to 35 °C with forward airflow and supports redundant 200-240 Vac power inputs for uninterrupted operation.

Highlights

  • 64 ports of 400 Gb/s NDR connectivity
  • 2 Tb/s aggregated bidirectional throughput capacity
  • 5 billion packets per second processing performance
  • 32 OSFP ports supporting 40 to 400 Gb/s speeds
  • 640 W typical power with passive cables

Specifications

BrandNVIDIA
SeriesQuantum-2 QM9700 Series
ModelQM9790
Part NumberMQM9790-NS2F
FormatRackmount
Primary Port Speed40, 56, 100, 200, 400 Gb/s per port
Primary Port Type32 x OSFP
PowerInput Voltage: 1x/2x, 200-240Vac, 10A, 50/60Hz
Global Power Consumption: Typical power with passive cables (ATIS): 640WMax power with active cables: 1,610W
Dimensions17.2" (H) x 1.7" (W) x 26" (D)
438mm (H) x 43.6mm (H) x 660mm (D)
Weight1 PSU: 13.6 kg
2 PSUs: 14.8 kg
TemperatureOperational: Forward air flow: 0 degree Celsius to 35 degrees Celsius / Reverse air flow: 0 degree Celsius to 40 degrees Celsius
Non-Operational: -40 degrees Celsius to 70 degrees Celsius
FeaturesMAIN DEVICES:
CPU (in QM9700 only): Intel Core i3 Coffee Lake
Switch: NVIDIA Quantum -2 IC
Switching throughput: 25.6Tbps
DisclaimerREGULATORY
Safety: CB, cTUVus, CE, CU, S-Mark
EMC: EMC: CE, FCC, VCCI, ICES, RCM, WW: CQC, BSMI, KCC, TEC, ANATEL
RoHS: RoHS compliant
Shipping weight2.27 kg
Package size356 × 254 × 178 mm

Questions about this item

What OSFP transceivers or cables do I need for the 32 ports?

Each of the 32 OSFP ports accepts 40, 56, 100, 200 or 400 Gb/s transceivers or direct-attach cables; match the link speed you require.

Will the switch fit in my existing 17.2-inch rack space with front-to-rear airflow?

The unit is 1.7 in tall, 17.2 in deep and uses power-to-connector airflow, so it occupies 1 U and matches standard front-to-rear cooling.

How can I confirm the 25.6 Tbps switching throughput is active after installation?

Check the management interface for port link speeds totalling 25.6 Tbps and verify the CPU reports the Quantum-2 ASIC operating at line rate.

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