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Green circuit board with dual QSFP+ ports and gold PCIe x16 edge connector

Supermicro

Supermicro MCX416A-GCAT ConnectX-4 2-Port PCI-E 3.0 X16 50Gbps network card

SKU CH-QV9N-HB7EJ

Dual-port PCI-Express 3.0 x16 network card delivering 50 Gbps connectivity via QSFP+ interfaces

  • Speed50Gbps
  • InterfacePCI-Express
  • Dual-port design doubles throughput potential
  • PCI-Express 3.0 x16 interface supports 50Gbps speed
  • QSFP+ cages accept high-density optical or copper cables
  • ConnectX-4 controller handles 50Gbps line-rate traffic
  • Supermicro validation ensures enterprise-grade reliability

Dual-Port 50 Gbps Connectivity

This Supermicro ConnectX-4 network card provides two QSFP+ ports each capable of 50 Gbps throughput. It installs in a PCI-Express 3.0 x16 slot and is built for enterprise data-centre and high-performance computing environments that demand low-latency, high-bandwidth links.

Thermals and Power in Normal Use

The adapter operates within standard PCI-Express power limits for an x16 add-in card. Its passive heatsink dissipates heat without adding fan noise, keeping acoustics at the level of the host chassis airflow during typical traffic loads.

Behaviour Under Sustained Load

Continuous line-rate traffic across both ports is sustained by the ConnectX-4 controller without thermal throttling in a properly ventilated server. The dual-port design maintains consistent throughput for clustered databases, parallel processing and other long-running workloads.

Points forts

  • Dual-port design doubles throughput potential
  • PCI-Express 3.0 x16 interface supports 50Gbps speed
  • QSFP+ cages accept high-density optical or copper cables
  • ConnectX-4 controller handles 50Gbps line-rate traffic
  • Supermicro validation ensures enterprise-grade reliability

Caractéristiques

BrandSupermicro
Part NumberMCX416A-GCAT
Speed50Gbps
InterfacePCI-Express

Questions sur cet article

How do I install the MCX416A-GCAT into a PCI-Express 3.0 x16 slot and what step is often missed?

Align the card with a PCI-Express 3.0 x16 slot, press firmly until the bracket seats, then secure the retention screw; the step often missed is attaching the QSFP+ cables before closing the chassis.

What maintenance or replacement will the dual-port QSFP+ card need over time?

The card itself has no moving parts; plan to inspect and reseat the QSFP+ transceivers and cables during scheduled server maintenance, and replace any optics that show link errors.

What limit appears first when the ConnectX-4 runs sustained 50 Gbps traffic?

The PCI-Express 3.0 x16 interface caps sustained throughput at the bus level, so that ceiling is reached before the dual-port 50 Gbps engines saturate.

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