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MCX346A-BCQN_OCP2.0

NVIDIA Mellanox ConnectX-3 Pro EN MCX346A-BCQN OCP2.0

PCIe 3.0 x8 Dual-Port 40G QSFP+ OCP 2.0 Ethernet Adapter (with NC-SI/IPMI Out-of-Band Management)

P/N: MCX346A-BCQN OCP2.0

Host Interface

PCIe 3.0 x8

Number of Ports

2-port

Port Type

QSFP+

Network Speed

40 Gb/s

RDMA Support

RoCE v1

Regulatory Certifications

Product Description

The NVIDIA Mellanox ConnectX-3 Pro EN MCX346A-BCQN OCP2.0 is the dual-port version of the MCX345A-BCQN, built to the OCP 2.0 form factor and delivering dual-port 40G QSFP+ Ethernet connectivity over a PCIe 3.0 x8 interface. Like its single-port sibling, it integrates NC-SI and IPMI out-of-band management, and additionally benefits from a dual-port architecture that enables improved network reliability through dual-switch uplinks and failover/load-balancing mechanisms. Combined with hardware-offloaded RDMA over Converged Ethernet (RoCE v1), UEFI boot support, and out-of-band management, it's an ideal choice for large cloud and enterprise data centers seeking high bandwidth, high availability, and centralized remote operations on a single OCP adapter.

Key Features

  • OCP 2.0 standard form factor for hyperscale data center servers

  • Dual-port 40Gb/s QSFP+ Ethernet connectivity

  • PCIe 3.0 x8 host interface for ample bandwidth

  • NC-SI out-of-band management interface with seamless BMC integration

  • IPMI (Intelligent Platform Management Interface) support

  • Dual-port failover and load balancing for improved network availability

  • RDMA over Converged Ethernet (RoCE v1) support

  • Hardware offload for TCP/IP, UDP, and iSCSI checksum calculations

  • UEFI boot support and SR-IOV network virtualization

  • Low latency and low CPU overhead, ideal for cloud and virtualized platforms