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Green PCB network card with dual QSFP28 ports and PCIe x8 gold fingers

Mellanox Technologies

Mellanox Technologies MCX414A-GCAT 50GbE dual-port QSFP28 network card

SKU CH-PSN3-RSMWC MPN MCX414A-GCAT

Dual-port QSFP28 card delivering 50 Gb/s Ethernet over PCIe 3.0 x8 for server networking

  • InterfacePCI Express 3.0 x8
  • FeaturesConnectX-4 EN Network Controller with 50Gb/s Ethernet connec
  • Dual 50 Gb/s ports double server bandwidth
  • PCI Express 3.0 x8 host interface fits standard server slots
  • Two QSFP28 cages accept optical fiber transceivers
  • Compact 5.6" × 2.7" plug-in card saves chassis space
  • RoHS-6 certification confirms environmentally friendly materials

Mellanox ConnectX-4 EN 50GbE Card

This Mellanox MCX414A-GCAT network interface card delivers 50GbE throughput through two QSFP28 ports using a PCI Express 3.0 x8 host connection. It is built for servers that need high-bandwidth Ethernet for cloud, data analytics, database and storage workloads. The card conforms to RoHS-6 environmental standards. Its plug-in form factor measures 5.6 inches by 2.7 inches.

Suited For And Not Suited For

This dual-port adapter suits server integrators deploying 50GbE optical links in PCIe 3.0 x8 slots where ConnectX-4 EN controller features are required. It is not for systems that lack a PCIe 3.0 x8 slot, cannot accommodate the stated card dimensions, or require a port count, media type or controller generation not provided by this specific model.

Deciding Specification

The single specification that determines fit is the dual-port QSFP28 interface operating at 50GbE over PCI Express 3.0 x8; if the target server slot, cabling plan or speed requirement differs from this combination, the card will not meet the deployment need.

Highlights

  • Dual 50 Gb/s ports double server bandwidth
  • PCI Express 3.0 x8 host interface fits standard server slots
  • Two QSFP28 cages accept optical fiber transceivers
  • Compact 5.6" × 2.7" plug-in card saves chassis space
  • RoHS-6 certification confirms environmentally friendly materials

Specifications

BrandMellanox
ModelMCX414A-GCAT
InterfacePCI Express 3.0 x8
FeaturesConnectX-4 EN Network Controller with 50Gb/s Ethernet connectivity, provide the highest performance and most flexible solution for high-performance, Web 2.0, Cloud, data analytics, database, and storage platforms.
With the exponential growth of data being shared and stored by applications and social networks, the need for high-speed and high performance compute and storage data centers is skyrocketing.
ConnectX-4 EN provides exceptional high performance for the most demanding data centers, public and private clouds, Web2.0 and BigData applications, and Storage systems, enabling today
Shipping weight0.25 kg
Package size224 × 170 × 56 mm

Questions about this item

My server only has PCIe 3.0 x8 slots — will the MCX414A-GCAT run at full 50GbE speed on that interface?

Yes, the card uses a PCI Express 3.0 x8 host interface, matching the slot exactly and providing the bandwidth needed for dual-port 50GbE throughput.

I plan to keep my existing QSFP+ optical modules — can I use them with the dual QSFP28 ports on this card?

The ports are QSFP28; they accept QSFP+ modules at reduced speeds, but 50GbE operation requires 50G-capable QSFP28 optics or direct-attach cables.

After installing the card, how can I confirm both 50GbE links are actually up and negotiating correctly?

Check the link LEDs on each port and verify in the OS or switch CLI that both interfaces show 50Gb/s speed, full duplex, and no errors.

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