NVIDIA/Mellanox MQM8790-HS2R Mellanox Quantum™ HDR InfiniBand Switch, 40 QSFP56 Ports, 2 Power Supplies (AC), Unmanaged, Standard Depth, C2P Airflow, Rail Kit

P/N: MQM8790-HS2R SKU: 10204

US$18,999.00

In Stock: 36 pcs

Switch Types:

MQM8700-HS2F 40x HDR,40x QSFP56,P2C,Managed
MQM8700-HS2R 40x HDR,40x QSFP56,C2P,Managed
MQM8790-HS2F 40x HDR,40x QSFP56,P2C,Unmanaged
MQM8790-HS2R 40x HDR,40x QSFP56,C2P,Unmanaged

Quantity:

30-day return and refund
3-year warranty
Available for delivery within 2 days
Free shipping for orders over

Products Highlight

40×200G HDR QSFP56 Ports in 1U
16Tb/s Non-Blocking Fabric Bandwidth
Break Out to 80×100G HDR Links
Sub-130ns Port-to-Port Latency
Unmanaged for External Fabric Control
Reverse C2P Airflow for Rack Alignment

NVIDIA/Mellanox MQM8790-HS2R Mellanox Quantum™ HDR InfiniBand Switch, 40 QSFP56 Ports, 2 Power Supplies (AC), Unmanaged, Standard Depth, C2P Airflow, Rail Kit MQM8790-HS2R

US$18,999.00 In Stock: 36 pcs 1

Specifications

Part Number	MQM8790-HS2R	Switch ASIC	NVIDIA Quantum
Form Factor	1U	Switching Capacity	16Tb/s
Ports	40 × QSFP56	Port Speed	200Gb/s HDR
Management	Unmanaged	Airflow	Connector-to-Power (C2P)
Cooling Mechanism	Air Cooled	Input Voltage	100-127VAC, 50/60Hz, 4.5A per PSU; 200-240VAC, 50/60Hz, 4.4A per PSU
Dimensions (H × W × D)	43.6 × 433.2 × 590.6 mm	Warranty	1-Year Limited Warranty

Applications

Certification

Features

Switch Series & Supported Models

Browse common switch series and models supported for each brand.

Compare Items

	NVIDIA/Mellanox MQM8790-HS2R Mellanox Quantum™ HDR InfiniBand Switch, 40 QSFP56 Ports, 2 Power Supplies (AC), Unmanaged, Standard Depth, C2P Airflow, Rail Kit	NVIDIA/Mellanox MQM8700-HS2F Mellanox Quantum™ HDR InfiniBand Switch, 40 QSFP56 Ports, 2 Power Supplies (AC),x86 Dual Core, Standard Depth, P2C Airflow, Rail Kit	NVIDIA/Mellanox MQM8700-HS2R Mellanox Quantum™ HDR InfiniBand Switch, 40 QSFP56 Ports, 2 Power Supplies (AC),x86 Dual Core, Standard Depth, C2P Airflow, Rail Kit	NVIDIA/Mellanox MQM8790-HS2F Mellanox Quantum™ HDR InfiniBand Switch, 40 QSFP56 Ports, 2 Power Supplies (AC), Unmanaged, Standard Depth, P2C Airflow, Rail Kit
Switch ASIC	NVIDIA Quantum	NVIDIA Quantum	NVIDIA Quantum	NVIDIA Quantum
Form Factor	1U	1U	1U	1U
Switching Capacity	16Tb/s	16Tb/s	16Tb/s	16Tb/s
Ports	40 × QSFP56	40 × QSFP56	40 × QSFP56	40 × QSFP56
Port Speed	200Gb/s HDR	200Gb/s HDR	200Gb/s HDR	200Gb/s HDR
Management	Unmanaged	Managed	Managed	Unmanaged
Airflow	Connector-to-Power (C2P)	Power-to-Connector (P2C)	Connector-to-Power (C2P)	Power-to-Connector (P2C)

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FAQ

Ask a Question

Find answers to common questions about our products.

Can QM8790 use HDR 200G and HDR100 100G connections in the same switch?

Yes. The switch can be configured in a split-ready profile, allowing some ports to remain native HDR 200G while others are split into 2×HDR100 links. Complete port planning before deployment, because splitting an interface removes its existing configuration.

Can legacy 100G EDR adapters connect through HDR100 breakout cables?

Not automatically. EDR 100G and HDR100 100G use different lane structures, so matching data rates alone do not guarantee interoperability. For legacy EDR adapters, confirm the adapter model, supported negotiation mode, and cable specification. HDR100 breakout connections are intended for compatible HDR100 adapters and cabling.

Can QM8790 replace a standard 200GbE Ethernet switch?

No. QM8790 is a native InfiniBand switch and does not operate as a standard 200GbE Ethernet switch. IP traffic can be carried over the InfiniBand fabric through IPoIB, but this does not provide conventional Layer 2 or Layer 3 Ethernet switching.

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