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Green circuit board with dual QSFP cages and gold PCIe edge connector

Mellanox Technologies

Mellanox MCX354A-FCCT ConnectX-3 Pro VPI FDR IB 40GbE Dual-Port QSFP PCIe network card

SKU CH-J10G-4WE4B

Dual-port QSFP card delivers 10, 40 and 56 Gb/s connectivity for servers and storage

  • Dual-port QSFP design doubles server I/O capacity
  • 10/40/56 Gb/s connectivity scales from standard to FDR InfiniBand speeds
  • PCIe interface consolidates networking and storage traffic on one slot
  • Low-latency guaranteed bandwidth accelerates cluster and storage workloads
  • Virtualized overlay network performance optimises modern data-centre deployments

Dual-Port QSFP Network Card

The Mellanox MCX354A-FCCT ConnectX-3 Pro VPI delivers 10, 40 or 56 Gb/s connectivity for servers and storage clusters. It suits administrators who need guaranteed bandwidth and low-latency services across virtualised overlay networks. The dual-port QSFP design enables I/O consolidation in dense rack environments. This card targets infrastructure teams building high-performance fabrics.

Thermals and Power Draw

The adapter operates within standard server thermal envelopes using passive cooling suited to directed airflow chassis. Power consumption scales with link speed and traffic load across both ports. Acoustic output is negligible in typical data-centre deployments where chassis fans dominate. No auxiliary power connector is required beyond the PCIe slot.

PCIe Interface Constraint

The card installs in a PCIe slot and presents two QSFP cages for optical or copper transceivers. Buyers must verify that their platform supplies a compatible PCIe generation and lane count for the desired throughput. Systems lacking an appropriate slot or QSFP cabling infrastructure cannot use this adapter.

Highlights

  • Dual-port QSFP design doubles server I/O capacity
  • 10/40/56 Gb/s connectivity scales from standard to FDR InfiniBand speeds
  • PCIe interface consolidates networking and storage traffic on one slot
  • Low-latency guaranteed bandwidth accelerates cluster and storage workloads
  • Virtualized overlay network performance optimises modern data-centre deployments

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the MCX354A-FCCT ConnectX-3 Pro VPI card and which step is most often missed?

Insert the card into a PCIe slot, secure the bracket, attach QSFP cables to both ports, then install the Mellanox OFED driver package; the step most often missed is loading the driver before cabling, which leaves the links down.

What maintenance or replacement will the MCX354A-FCCT card need over time?

The card has no moving parts; maintenance is limited to keeping the QSFP ports dust-free and re-seating cables if link errors appear, while firmware updates from Mellanox should be applied when released.

What limit appears first on the MCX354A-FCCT under sustained 40 GbE load?

The PCIe bus and the dual QSFP ports cap sustained throughput at 40 Gb/s per port, so the interface bandwidth is the first bottleneck before the adapter itself saturates.

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