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Mellanox Technologies

Mellanox MCX313A-BCCT ConnectX-3 Pro EN 10/40/56GbE PCIe 3.0 x8 network card

SKU CH-1RM1-SDP9S

A 10/40/56GbE PCIe 3.0 x8 network adapter with hardware offload for overlay networks in servers and storage

  • 10/40/56 GbE speeds for high-throughput server and storage workloads
  • PCIe 3.0 x8 interface delivers low-latency, high-bandwidth connectivity
  • Hardware offload engines accelerate overlay network tunnelling
  • Supports virtualized environments with guaranteed bandwidth services
  • Enables I/O consolidation to reduce infrastructure cost per operation

Server-grade 10/40/56GbE adapter

The ConnectX-3 Pro EN card delivers 10, 40 and 56 gigabit Ethernet over a PCI Express 3.0 x8 slot for servers and storage clusters. It targets cloud infrastructure, enterprise data centres and high-performance computing workloads that need consistent throughput.

Sustained throughput with hardware offload

Hardware tunnelling engines handle VXLAN and NVGRE encapsulation in silicon, keeping CPU cycles free during long-running transfers. Guaranteed bandwidth and low-latency service classes prevent tail-latency spikes when the fabric is fully loaded.

PCIe 3.0 x8 form factor for dense racks

The half-height bracket fits standard server chassis without blocking adjacent slots. Dual-port QSFP+ cages accept direct-attach copper or optical modules, letting operators match reach and cost per link without rewiring the rack.

How it compares

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

Price $48.99
Cheaper than about 68% of the 1,505 comparable items (median $90.99).

Specifications

No published specifications for this item yet.

Questions about this item

How much heat does the 56GbE card add to a server running all day?

The ConnectX-3 Pro EN adapter is a passive, fan-less PCIe 3.0 x8 card; it relies on the server’s own airflow and adds no active cooling noise.

Which cables and transceivers must I already have for the MCX313A-BCCT to link at 40 or 56GbE?

The card uses QSFP+ ports, so you need compatible QSFP+ DACs, AOCs or optical modules rated for the desired 10, 40 or 56GbE speed.

Will this PCIe 3.0 x8 adapter work in an older PCIe 2.0 slot I plan to keep?

Yes, the card is backward compatible with PCIe 2.0 x8 slots, though maximum throughput will be limited to the Gen2 bandwidth ceiling.

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