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Green printed circuit board with dual QSFP28 ports and gold PCIe x16 edge connector

Mellanox Technologies

Mellanox MCX516A-CCAT 100GbE Dual-port QSFP28 PCIe 3.0 x16 expansion card

SKU CH-PEZ9-XD030

Adds two 100 GbE QSFP28 ports via a PCIe 3.0 x16 slot for high-speed networking

  • 100 GbE throughput with dual QSFP28 ports
  • PCIe 3.0 x16 lane width for high bandwidth
  • ConnectX-5 controller drives low-latency networking
  • New condition ensures full manufacturer reliability
  • First listed by manufacturer in October 2024

Network Interface Card 100GbE Dual Port

The Mellanox MCX516A-CCAT is a ConnectX-5 based network interface card delivering 100GbE throughput across two QSFP28 ports. It targets datacentre and high-performance computing environments that need low-latency Ethernet connectivity. The card installs in a PCIe 3.0 x16 slot and is supplied in new condition.

PCIe 3.0 x16 Slot QSFP28 Cabling

Integration requires an available PCIe 3.0 x16 lane and compatible QSFP28 transceivers or direct-attach cables for each port. The dual-port design frees a second expansion slot that would otherwise be occupied by a single-port adapter. Adequate chassis airflow must be provided for the card’s thermal envelope.

High-Density 100GbE Deployments

This adapter suits clusters, storage fabrics and hyper-scale workloads demanding 100GbE density in a half-height form factor. It is not intended for desktop PCs lacking PCIe 3.0 x16 bandwidth or QSFP28 cabling infrastructure. Buyers needing Fibre Channel or InfiniBand protocols should select a different ConnectX variant.

Pontos fortes

  • 100 GbE throughput with dual QSFP28 ports
  • PCIe 3.0 x16 lane width for high bandwidth
  • ConnectX-5 controller drives low-latency networking
  • New condition ensures full manufacturer reliability
  • First listed by manufacturer in October 2024

Especificações

Ainda não há especificações publicadas para este artigo.

Perguntas sobre este artigo

What is the PCIe lane width that limits sustained throughput on the MCX516A-CCAT?

The card uses a PCIe 3.0 x16 interface, so the lane width is 16 lanes.

How much power does the ConnectX-5 controller draw when both 100 GbE ports run continuously?

Typical power draw is 24 W for the dual-port 100 GbE configuration.

Which transceiver modules must I already own to connect the two QSFP28 ports?

You need two QSFP28 modules or cables rated for 100 GbE, one per port.

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