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Green half-height PCIe card with two QSFP cages

Mellanox Technologies

Mellanox Technologies MHQH29-XTC 40 Gbps 2 x QSFP PCI Express 2.0 network card

SKU CH-PP0W-2R1HY MPN MHQH29-XTC

Dual-port QSFP InfiniBand adapter delivers 40 Gbps over PCIe 2.0 for low-latency server and storage clustering

  • Rated speed40 Gbit/s 2 x QSFP
  • Interface typePCI Express 2.0
  • Key featuresMellanox ConnectX IB InfiniBand Host Channel Adapter (HCA) c
  • 40 Gbps throughput via dual QSFP ports
  • PCI Express 2.0 host interface for server integration
  • Low-latency InfiniBand connectivity for clustered workloads
  • High-bandwidth performance for storage and compute nodes
  • ConnectX IB adapter reduces completion time per operation

Target environment

This Mellanox ConnectX InfiniBand Host Channel Adapter suits enterprise data centres and high-performance computing clusters that require low-latency, high-bandwidth interconnects for server and storage clustering. It also fits embedded deployments where consolidated I/O reduces infrastructure complexity.

Bundled change

The card arrives as a standalone adapter; no cables, transceivers or management software are included in the supplier data. Buyers must source compatible QSFP modules and any required drivers or firmware separately to activate the dual-port link.

Build and connectors

A standard PCI Express 2.0 bracket provides the mechanical interface for rack-mount servers, while two QSFP cages accept 40 Gbps optical or direct-attach copper modules. The form factor assumes adequate slot clearance and airflow inside the host chassis.

How it compares

Measured against everything we stock in Ethernet Cards & NICs, at today’s prices. Recalculated every night.

Price $1,070.99
Pricier than about 91% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameMellanox
Model nameMHQH29-XTC
Performance
Rated speed40 Gbit/s 2 x QSFP
Ports & slots
Interface typePCI Express 2.0
Size & build
Shipping weight0.45 kg
Package size137 × 64 × 5 mm

Questions about this item

Does the MHQH29-XTC require any periodic maintenance or component replacement?

The card has no moving parts and no user-serviceable components, so no scheduled maintenance or replacement is needed during normal operation.

What limits sustained throughput on the MHQH29-XTC when running at full 40 Gbps?

The PCI Express 2.0 x8 interface caps sustained bandwidth, so the bus becomes the bottleneck before the dual QSFP ports saturate.

How much power does the MHQH29-XTC draw and how hot does it get under continuous load?

Typical power draw is under 29 W and the passive heatsink keeps the adapter within its thermal envelope in standard server airflow.

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