NVIDIA · Data Centre Switching
NVIDIA Quantum InfiniBand and Spectrum Ethernet switches
NVIDIA networking, formerly Mellanox, supplies the two switch families that most high-performance and AI clusters are built on: Quantum for InfiniBand and Spectrum for Ethernet. Both are ordered by an exact part number, because the same chassis is sold with different airflow directions, management options and operating systems, and a unit with the wrong suffix will not suit the rack it is intended for. This page lists the InfiniBand switches from EDR 100 Gb/s to XDR 800 Gb/s and the Spectrum Ethernet switches from 1GbE management to 800GbE that CRS PLUS sources, each with its port configuration and airflow.
Catalogue
Equipment reference
| Part Number | Model / Designation | Compatibility | Band / Interface | Condition | Lead Time | Quote |
|---|---|---|---|---|---|---|
| MQM8700-HS2F | Quantum HDR InfiniBand switch, managed | NVIDIA Quantum · HDR InfiniBand | 40 × QSFP56, 200 Gb/s · P2C airflow | On enquiry | On enquiry | |
| MQM8790-HS2F | Quantum HDR InfiniBand switch, externally managed | NVIDIA Quantum · HDR InfiniBand | 40 × QSFP56, 200 Gb/s · P2C airflow | On enquiry | On enquiry | |
| MQM9700-NS2F | Quantum-2 NDR InfiniBand switch, managed | NVIDIA Quantum-2 · NDR InfiniBand | 64 × 400 Gb/s over 32 OSFP cages · P2C airflow | On enquiry | On enquiry | |
| MQM9700-NS2R | Quantum-2 NDR InfiniBand switch, managed | NVIDIA Quantum-2 · NDR InfiniBand | 64 × 400 Gb/s over 32 OSFP cages · C2P airflow | On enquiry | On enquiry | |
| MQM9790-NS2F | Quantum-2 NDR InfiniBand switch, externally managed | NVIDIA Quantum-2 · NDR InfiniBand | 64 × 400 Gb/s over 32 OSFP cages · P2C airflow | On enquiry | On enquiry | |
| MQM9790-NS2R | Quantum-2 NDR InfiniBand switch, externally managed | NVIDIA Quantum-2 · NDR InfiniBand | 64 × 400 Gb/s over 32 OSFP cages · C2P airflow | On enquiry | On enquiry | |
| MSB7890-ES2F | Switch-IB 2 EDR InfiniBand switch, externally managed | NVIDIA Switch-IB 2 · EDR InfiniBand | 36 × QSFP28, 100 Gb/s · P2C airflow | On enquiry | On enquiry | |
| MSN2201-CB2FC | Spectrum SN2201 1GbE management switch, Cumulus Linux | NVIDIA Spectrum · Ethernet | 48 × RJ45 1GbE + 4 × QSFP28 100GbE · P2C airflow | On enquiry | On enquiry | |
| MSN2410-CB2F | Spectrum SN2410 25/100GbE switch, Onyx | NVIDIA Spectrum · Ethernet | 48 × SFP28 25GbE + 8 × QSFP28 100GbE · P2C airflow | On enquiry | On enquiry | |
| MSN2410-CB2FC | Spectrum SN2410 25/100GbE switch, Cumulus Linux | NVIDIA Spectrum · Ethernet | 48 × SFP28 25GbE + 8 × QSFP28 100GbE · P2C airflow | On enquiry | On enquiry | |
| MSN2410-CB2R | Spectrum SN2410 25/100GbE switch, Onyx | NVIDIA Spectrum · Ethernet | 48 × SFP28 25GbE + 8 × QSFP28 100GbE · C2P airflow | On enquiry | On enquiry | |
| MSN2410-CB2RC | Spectrum SN2410 25/100GbE switch, Cumulus Linux | NVIDIA Spectrum · Ethernet | 48 × SFP28 25GbE + 8 × QSFP28 100GbE · C2P airflow | On enquiry | On enquiry | |
| MSN2700-CS2F | Spectrum SN2700 100GbE switch, Onyx | NVIDIA Spectrum · Ethernet | 32 × QSFP28 100GbE · P2C airflow | On enquiry | On enquiry | |
| MSN2700-CS2FC | Spectrum SN2700 100GbE switch, Cumulus Linux | NVIDIA Spectrum · Ethernet | 32 × QSFP28 100GbE · P2C airflow | On enquiry | On enquiry | |
| MSN3700-CS2FC | Spectrum-2 SN3700C 100GbE switch, Cumulus Linux | NVIDIA Spectrum-2 · Ethernet | 32 × QSFP28 100GbE · P2C airflow | On enquiry | On enquiry | |
| MSN3700-CS2R | Spectrum-2 SN3700C 100GbE switch, Onyx | NVIDIA Spectrum-2 · Ethernet | 32 × QSFP28 100GbE · C2P airflow | On enquiry | On enquiry | |
| MSN3700-CS2RC | Spectrum-2 SN3700C 100GbE switch, Cumulus Linux | NVIDIA Spectrum-2 · Ethernet | 32 × QSFP28 100GbE · C2P airflow | On enquiry | On enquiry | |
| MSN3700-VS2FC | Spectrum-2 SN3700 200GbE switch, Cumulus Linux | NVIDIA Spectrum-2 · Ethernet | 32 × QSFP56 200GbE · P2C airflow | On enquiry | On enquiry | |
| MSN4600-CS2F | Spectrum-3 SN4600C 100GbE switch, 2U, Onyx | NVIDIA Spectrum-3 · Ethernet | 64 × QSFP28 100GbE · P2C airflow | On enquiry | On enquiry | |
| MSN4600-CS2FC | Spectrum-3 SN4600C 100GbE switch, 2U, Cumulus Linux | NVIDIA Spectrum-3 · Ethernet | 64 × QSFP28 100GbE · P2C airflow | On enquiry | On enquiry | |
| MSN4700-WS2FC | Spectrum-3 SN4700 400GbE switch, Cumulus Linux | NVIDIA Spectrum-3 · Ethernet | 32 × QSFP-DD 400GbE · P2C airflow | On enquiry | On enquiry | |
| Q3400-RAAlso: 920-9B36F-00RX-8S0 | Quantum-X800 XDR InfiniBand switch, 4U, managed | NVIDIA Quantum-X800 · XDR InfiniBand | 144 × 800 Gb/s over 72 OSFP cages | On enquiry | On enquiry | |
| SN5610 | Spectrum-4 SN5610 800GbE switch, 2U | NVIDIA Spectrum-4 · Ethernet | 64 × OSFP 800GbE + 2 × SFP28 | On enquiry | On enquiry |
Cannot find a part number? Send us the number and we will identify and price it.
How to read these part numbers
The ordering code states the platform and the build. In `MQM8700-HS2F`, `MQM8700` is the Quantum managed switch, `H` the HDR port speed, `S2` a standard-depth chassis with two power supplies, and `F` power-to-connector (P2C) airflow. An `R` in the last position, as in `MQM9700-NS2R`, is connector-to-power (C2P) airflow.
On InfiniBand switches the model number separates managed from externally managed units: `MQM8700` and `MQM9700` carry an on-board subnet manager, while `MQM8790` and `MQM9790` rely on a subnet manager elsewhere in the fabric. On Spectrum Ethernet switches a trailing `C`, as in `MSN3700-CS2FC`, denotes a unit supplied for Cumulus Linux; without it the unit is supplied with Onyx.
Ordering notes
Confirm airflow direction against the hot-aisle layout before ordering: P2C and C2P are different part numbers and the fan and power modules are not interchangeable between them. State whether a managed or an externally managed InfiniBand switch is required, since a fabric built only from externally managed units needs a subnet manager on a host or on another switch.
Transceivers, active optical cables and direct-attach cables are quoted separately and should be specified together with the switch, because port type differs by generation: QSFP28 for EDR and 100GbE, QSFP56 for HDR, OSFP for NDR and XDR. Operating-system licences and manufacturer support contracts are not transferable with refurbished hardware and are not included unless stated on the quotation.
Lifecycle and availability
The Spectrum SN2000 series listed here is end of life with the manufacturer and is supplied as new surplus or as tested refurbished units, with condition stated per line. Current Quantum-2, Quantum-X800, Spectrum-3 and Spectrum-4 platforms are sourced to order against confirmed supply. Certain high-performance networking and computing products are subject to export control, and where that applies the transaction is completed only after compliance checks are satisfied for the stated end destination and end use.
Equipment condition
New — factory-sealed, supplied through the manufacturer's own channel or a qualified distributor, with full manufacturer warranty.
New surplus — unused factory stock, original packaging where available, sourced from decommissioned projects or distributor inventory. Manufacturer warranty may have lapsed; CRS PLUS warranty applies.
Refurbished / tested — previously deployed equipment, cleaned, firmware-checked and functionally tested against the manufacturer's specification before shipment. CRS PLUS warranty applies.
Condition is confirmed in writing on every quotation before you commit to an order.
Warranty
Warranty terms vary by item, by condition and by the supplier the equipment is sourced from. They are stated in writing on the quotation, per line item, before you commit to an order.
Where equipment is supplied new through the manufacturer's own channel, the manufacturer's warranty applies and is passed to you.
Send us the part numbers you need and we will confirm warranty terms alongside availability, condition, lead time and price.
Questions
Frequently asked questions
Do you hold NVIDIA switches in stock?
Listing here does not indicate stock held by CRS PLUS. Every line is sourced through our qualified supplier base, and availability, condition and lead time are confirmed against your enquiry before you commit. Condition is stated explicitly on every quotation.
What is the difference between the MQM8700 and the MQM8790?
Both are Quantum HDR InfiniBand switches with 40 QSFP56 ports at 200 Gb/s. The MQM8700 is internally managed and includes an on-board subnet manager; the MQM8790 is externally managed and depends on a subnet manager running elsewhere in the fabric. The same distinction applies to the MQM9700 and MQM9790 in the Quantum-2 NDR generation.
What do P2C and C2P mean on an NVIDIA switch part number?
They state airflow direction. P2C is power-to-connector, where air enters at the power-supply side and leaves at the port side; C2P is connector-to-power, the reverse. The final letter of the part number carries it: F for P2C and R for C2P. The correct choice depends on which side of the switch faces the cold aisle.
Can you supply a part number that is not listed on this page?
Yes. This page lists 23 line items currently identified in our supplier network, and it is not the limit of what we source. Send the part number, or the machine model and the position the part occupies, and we will identify and price it.
What condition is the equipment supplied in?
New, new-old-stock and tested refurbished are all sourced, and the condition of each line is stated on the quotation before you commit. Where a part is end-of-sale, no manufacturer warranty applies and this is said plainly rather than implied.
Which markets do you deliver to?
CRS PLUS serves buyers across the Middle East and Africa from a supplier base in China, Europe and the United States. Delivery terms and destination are confirmed per enquiry, and shipping is quoted alongside the goods.
What is the price of NVIDIA Quantum and Spectrum switches?
CRS PLUS does not publish list prices: the price of each item depends on its condition (new, new surplus or refurbished), the quantity and the destination. Send the part number and quantity through the form on this page and a structured offer follows within 72 hours, with price, condition and lead time stated per line.
What is the lead time for NVIDIA Quantum and Spectrum switches?
Lead time depends on where stock is held at the time of your enquiry, so it is confirmed per line on the quotation, together with the condition of each unit. Items that are no longer in production are quoted as new surplus or as tested refurbished units.
Can CRS PLUS propose an alternative if a part number is discontinued or unavailable?
Yes. Where a part cannot be found in the quantity required, our engineers propose an equivalent that delivers the same function from parts that are available, and state the trade-offs in writing before you commit.
Related pages
Manufacturer names, product names and part numbers are the property of their respective owners and are used here for identification purposes only. CRS PLUS sources these products through its qualified supplier base and holds no distributor, reseller or agency appointment from any manufacturer listed.
This catalogue is compiled from our supplier network's available inventory and from manufacturer product documentation, and is reviewed monthly. Listing does not indicate stock held by CRS PLUS — availability, condition and lead time are confirmed per enquiry. Last reviewed: 11 November 2026.
Need an NVIDIA switch quoted?
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