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Green circuit board with gold PCIe edge connector and metal bracket

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symbol MHQH19B-XTR Infiniband Host Bus Adapter PCIe 2.0 40 Gbps

SKU CH-MCZM-D7CJE

An Infiniband host bus adapter with a PCIe 2.0 interface running at 40 Gbps

  • TypeCorrection Tape
  • 40 Gbps throughput for high-speed Infiniband connectivity
  • PCIe 2.0 interface fits standard server expansion slots
  • Mellanox engineering ensures reliable cluster performance
  • New condition guarantees full manufacturer specification compliance
  • First listed by manufacturer in April 2017

PCIe 2.0 40 Gbps Infiniband Adapter

This Mellanox host bus adapter provides a 40 Gbps Infiniband link over a PCIe 2.0 slot. It suits high-performance computing clusters and storage fabrics that rely on this specific interconnect standard. The card was first listed by the manufacturer in 2017.

Suited for legacy HPC clusters, not modern Ethernet

The adapter fits existing Infiniband fabrics that run at 40 Gbps and have a free PCIe 2.0 lane. It is not for builders who need Ethernet connectivity, higher link speeds, or a newer PCIe generation. Buyers deploying fresh infrastructure should look elsewhere.

40 Gbps Infiniband link speed

The single specification that decides fit is the 40 Gbps Infiniband data rate combined with the PCIe 2.0 host interface. Verify that your cluster fabric and slot type match exactly before purchase.

Highlights

  • 40 Gbps throughput for high-speed Infiniband connectivity
  • PCIe 2.0 interface fits standard server expansion slots
  • Mellanox engineering ensures reliable cluster performance
  • New condition guarantees full manufacturer specification compliance
  • First listed by manufacturer in April 2017

Specifications

TypeCorrection Tape
BrandMellanox

Questions about this item

What PCIe slot generation does the MHQH19B-XTR need to reach 40 Gbps?

The adapter is specified for PCIe 2.0 and delivers 40 Gbps when installed in a compatible slot.

Will the MHQH19B-XTR work in a PCIe 3.0 or newer slot I already have?

Yes, the card is backward compatible and will operate at its rated 40 Gbps in newer PCIe generations.

How do I confirm the MHQH19B-XTR is running at 40 Gbps after installation?

Check the link status in your OS network tools or Infiniband management utilities; it should report a 40 Gbps active connection.

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