Mellanox presents the NVIDIA Mellanox MQM9790-NS2R, an enterprise-grade switch engineered for data center and high-performance network backbone environments. Featuring NVIDIA Quantum-2 IC, this switch is optimized for next-generation connectivity with blazing port speeds of 400Gb/s per port, ensuring exceptional throughput for demanding applications. As an unmanaged platform, it simplifies integration, making it ideal for organizations seeking maximum bandwidth without complex setup. The MQM9790-NS2R incorporates a C2P (Connector-to-Processor) airflow design, promoting enhanced cooling and ensuring operational stability even during intensive workloads, while supporting both forward and reverse airflow to complement varying data center configurations. This NVIDIA Mellanox solution is specifically tailored to handle hyperscale, artificial intelligence, and cloud workloads, meeting the needs of distributors, small-to-medium system integrators, and end-users across Asia, Europe, Africa, and North America. Its robust feature set, including up to 32 OSFP connector cages, wide temperature and humidity tolerance, industry-standard certifications, and power redundancy, guarantees reliable deployment in complex IT infrastructures. By integrating 25.6 Tbps switching capacity and support for RoHS compliance along with advanced safety and EMC certifications, the MQM9790-NS2R ensures both sustainable and high-speed data transport for mission-critical business operations. As part of the NVIDIA Mellanox networking portfolio, this device empowers enterprises to scale for future initiatives while maintaining uncompromised performance, energy efficiency, and easy management in global digital transformation scenarios.
Product Features Comparison
| Port Configuration |
32 x OSFP |
32 × QSFP28 100GbE |
32 x 100G QSFP100 |
32 x 400GbE Expansion Slot |
| Switching Capacity |
25.6 Tbps |
3.2 Tb/s |
6.4 Tbps |
n/a |
| Forwarding Rate |
n/a |
4.76 Bpps |
2.4 Bpps |
n/a |
| PoE Budget |
n/a |
n/a |
n/a |
n/a |
| Stacking Capability |
n/a |
n/a |
n/a |
n/a |
NVIDIA Mellanox MQM9790-NS2R Specification
Model
NVIDIA Mellanox MQM9790-NS2R
Form Factor
19" rack mount
Dimensions
17.2 in (H) x 1.7 in (W) x 26 in (D) / 438 mm (H) x 43.6 mm (W) x 660 mm (D)
Port Speed
40, 56, 100, 200, 400 Gbps per port
Operating Temperature (Forward Airflow)
0°C to 35°C
Operating Temperature (Reverse Airflow)
0°C to 40°C
Non-Operating Temperature
-40°C to 70°C
Operating Humidity
10%–85% non-condensing
Non-Operating Humidity
10%–90% non-condensing
Noise Level
78.4 dBA at room temperature
Input Voltage
1x/2x, 200–240 VAC, 10A, 50/60 Hz
HVDC Input (China only)
200–300 VDC, 9.5A
Typical Power (Passive Cables, ATIS)
640 W
Max Power (Active Cables)
1,610 W
Switch Chip
NVIDIA Quantum-2 IC
CPU (QM9700 only)
Intel® Core™ i3 Coffee Lake
Switching Capacity
25.6 Tbps
Safety Certifications
CB, cTUVus, CE, CU, S-Mark
EMC Certifications
CE, FCC, VCCI, ICES, RCM, CQC, BSMI, KCC, TEC, ANATEL
| Port Configuration |
32 x OSFP |
32 × QSFP28 100GbE |
32 x 100G QSFP100 |
32 x 400GbE Expansion Slot |
| Switching Capacity |
25.6 Tbps |
3.2 Tb/s |
6.4 Tbps |
n/a |
| Forwarding Rate |
n/a |
4.76 Bpps |
2.4 Bpps |
n/a |
| PoE Budget |
n/a |
n/a |
n/a |
n/a |
| Stacking Capability |
n/a |
n/a |
n/a |
n/a |
Optional Add-ons
| Model Number |
Description |
| MMA4Z00-NS |
NVIDIA Mellanox OSFP 400G Transceiver Module, ideal for high-speed data center connectivity |
| MCP7F00-A01 |
Mellanox 400GbE OSFP Direct Attach Copper Cable for short-reach high-bandwidth connections |
| PSU-MQM97XX |
Redundant Power Supply Unit for NVIDIA Mellanox MQM9790-NS2R switch power backup |
Optional Add-ons
| Model Number |
Description |
| MMA4Z00-NS |
NVIDIA Mellanox OSFP 400G Transceiver Module, ideal for high-speed data center connectivity |
| MCP7F00-A01 |
Mellanox 400GbE OSFP Direct Attach Copper Cable for short-reach high-bandwidth connections |
| PSU-MQM97XX |
Redundant Power Supply Unit for NVIDIA Mellanox MQM9790-NS2R switch power backup
|
NVIDIA Mellanox MQM9790-NS2R Specification
Model
NVIDIA Mellanox MQM9790-NS2R
Form Factor
19" rack mount
Dimensions
17.2 in (H) x 1.7 in (W) x 26 in (D) / 438 mm (H) x 43.6 mm (W) x 660 mm (D)
Port Speed
40, 56, 100, 200, 400 Gbps per port
Operating Temperature (Forward Airflow)
0°C to 35°C
Operating Temperature (Reverse Airflow)
0°C to 40°C
Non-Operating Temperature
-40°C to 70°C
Operating Humidity
10%–85% non-condensing
Non-Operating Humidity
10%–90% non-condensing
Noise Level
78.4 dBA at room temperature
Input Voltage
1x/2x, 200–240 VAC, 10A, 50/60 Hz
HVDC Input (China only)
200–300 VDC, 9.5A
Typical Power (Passive Cables, ATIS)
640 W
Max Power (Active Cables)
1,610 W
Switch Chip
NVIDIA Quantum-2 IC
CPU (QM9700 only)
Intel® Core™ i3 Coffee Lake
Switching Capacity
25.6 Tbps
Safety Certifications
CB, cTUVus, CE, CU, S-Mark
EMC Certifications
CE, FCC, VCCI, ICES, RCM, CQC, BSMI, KCC, TEC, ANATEL