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NVIDIA Mellanox MSB7790-ES2F Switch-IB EDR 100Gb/s 36-Port QSFP28 1U P2C

NVIDIA Mellanox

NVIDIA Mellanox MSB7790-ES2F Switch-IB EDR 100Gb/s 36-Port QSFP28 1U P2C

Part no.MSB7790-ES2F

€1,500.00

In stockCondition: Refurbished

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How this unit is built

Built to your work order from a recovered chassis, with refurbished power supplies and fans for the airflow you need, then loaded with compatible firmware and operating system and tested before it ships.

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Description

NVIDIA Mellanox MSB7790-ES2F Switch-IB EDR InfiniBand Switch — 36 QSFP28 Ports, 100Gb/s per Port, 1U, Dual PSU, P2C Airflow: This is an externally-managed (no onboard subnet manager) 36-port Switch-IB EDR InfiniBand switch with QSFP28 cages, in a 1U rack form factor. The "ES2F" suffix designates dual AC power supplies and PSU-side to connector-side (P2C / front-to-back) airflow. This is NOT a Switch-IB-2 / HDR platform (those are MSB7800 / MQM87xx series) and NOT a managed switch with onboard SM — it is Switch-IB EDR (100Gb/s per port). Condition: Refurbished, tested.

Engineering Context: The MSB7790-ES2F is built on the Switch-IB ASIC and provides 7.2Tb/s aggregate non-blocking switching capacity across 36 EDR ports, each operating at 100Gb/s (4x25Gb/s NRZ). Port-to-port latency is on the order of 90ns. As an externally-managed switch, fabric subnet management must be supplied by an external OpenSM instance running on a host or by a managed peer.

Deployment & Use Cases: Used as a top-of-rack or director-class spine in EDR InfiniBand HPC clusters, GPU-accelerated AI/ML training fabrics (NCCL collectives over IB), low-latency financial back-end networks, and NVMe-oF over InfiniBand storage interconnects.

Technical Specifications:

  • Switch ASIC: Switch-IB
  • Port Count: 36 x QSFP28
  • Per-Port Rate: EDR InfiniBand 100Gb/s (4x25Gb/s NRZ)
  • Switching Capacity: 7.2 Tb/s aggregate, non-blocking
  • Port-to-Port Latency: ~90 ns
  • Management: Externally-managed (external OpenSM required)
  • Form Factor: 1U rack-mount
  • Power Supply: Dual hot-swap AC PSUs
  • Airflow: PSU-side to connector-side (P2C, front-to-back)
  • NVIDIA P/N family: 920-9B010-00FE-0D1
  • Backward-compatible: FDR (56Gb/s) and below at the link layer
  • Condition: Refurbished, tested

Compatibility & Constraints: Compatible with Mellanox ConnectX-4 / ConnectX-5 / ConnectX-6 EDR HCAs and any QSFP28 EDR-capable adapter, plus Mellanox QSFP28 EDR copper DACs and active optical cables (e.g., MFA1A00 series, MCP1600 series). NOT a managed switch — pair with an OpenSM host or a managed Switch-IB peer. Not HDR (200Gb/s) or NDR (400Gb/s) capable. P2C airflow (1BFC variant has reverse C2P airflow) — verify aisle alignment before installation.

Why TES: T.E.S IT-SOLUTIONS specializes in refurbished NVIDIA Mellanox enterprise networking hardware. This MSB7790-ES2F ships from EU stock with 1–3 day handling. For matching cabling, EDR-to-HDR migration paths, or a managed alternative, contact TES.

Frequently Asked Questions

What is the MSB7790-ES2F NOT compatible with?

This is NOT a Switch-IB-2 / HDR platform (those are MSB7800 / MQM87xx series) and NOT a managed switch with onboard SM — it is Switch-IB EDR (100Gb/s per port). Confirm fitment against your platform before ordering MSB7790-ES2F.

What condition is the MSB7790-ES2F supplied in, and who sells it?

The MSB7790-ES2F is supplied in Refurbished condition by T.E.S IT-SOLUTIONS from EU stock, with 1-3 business day handling and worldwide B2B shipping. See https://www.tes-itsolutions.com/product-page/new-mellanox-msb7790-es2f-100-g-b-ib-edr-infiniband-1u-switch-36-qsfp28-ports.

Are there deployment constraints on the MSB7790-ES2F?

NOT a managed switch — pair with an OpenSM host or a managed Switch-IB peer. This applies to MSB7790-ES2F specifically.