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MCX354A-FCBT

NVIDIA Mellanox ConnectX-3 VPI MCX354A-FCBT

PCIe 3.0 x8 Dual-Port 40/56G Ethernet / FDR (56G) InfiniBand QSFP Ethernet/InfiniBand VPI Adapter (Tall Bracket)

P/N: MCX354A-FCBT

Host Interface

PCIe 3.0 x8

Number of Ports

2-port

Port Type

QSFP

Network Speed

40/56G Ethernet / FDR (56G) InfiniBand

Protocol Support

Ethernet / InfiniBand (VPI dual-protocol)

Regulatory Certifications

Product Description

The NVIDIA Mellanox ConnectX-3 VPI MCX354A-FCBT is a dual-port adapter supporting VPI (Virtual Protocol Interconnect) dual-protocol technology, allowing the same physical card to flexibly switch between Ethernet and InfiniBand, with speeds up to 40/56G Ethernet / FDR (56G) InfiniBand, delivered over a PCIe 3.0 x8 interface. This variant uses a tall bracket design, and combined with hardware-offloaded RDMA (native InfiniBand RDMA and RoCE v1), significantly reduces latency and CPU overhead for high-performance computing (HPC) and data center applications — ideal for organizations and research institutions that need to deploy both Ethernet and InfiniBand fabrics in the same facility, or want the flexibility to switch protocols in the future.

Key Features

  • VPI dual-protocol technology, switchable between Ethernet and InfiniBand

  • Dual-Port 40/56G Ethernet / FDR (56G) InfiniBand QSFP connectivity

  • PCIe 3.0 x8 host interface for ample bandwidth

  • Native InfiniBand RDMA and RoCE v1 (RDMA over Converged Ethernet) support

  • Tall Bracket for different chassis height requirements

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

  • SR-IOV support for network virtualization and multi-tenant isolation

  • Low latency and low CPU overhead, ideal for HPC and high-performance computing clusters

  • GPUDirect RDMA support to accelerate GPU cluster performance

  • Broad driver support across operating systems and virtualization platforms