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About This Manual

This User Manual describes NVIDIA® Mellanox® ConnectX®-5 and ConnectX®-5 Ex VPI adapter cards for Open Compute Project (OCP), Spec 2.0. It provides details as to the interfaces of the board, specifications, required software and firmware for operating the board, and relevant documentation.

Ordering Part Numbers

The table below provides the ordering part numbers (OPN) for the available ConnectX-5 VPI adapter cards for OCP Spec 2.0.

IC ModelOPNMarketing Description
ConnectX-5MCX545A-ECANConnectX®-5 VPI network interface card for OCP , with host management, EDR IB (100Gb/s) and 100GbE, single-port QSFP28, PCIe Gen3.0 x16, no bracket 
MCX545B-ECANConnectX®-5 VPI network interface card for OCP, with host management, EDR IB (100Gb/s) and 100GbE, single-port QSFP28, PCIe Gen3.0 x16, no bracket, Type-1 Heat Sink
MCX545M-ECANConnectX®-5 VPI network interface card for OCP with Multi-Host, with host management, EDR IB (100Gb/s) and 100GbE, single-port QSFP28, PCIe Gen3.0 x16, no bracket
ConnectX-5 ExMCX546A-EDANConnectX®-5 Ex VPI network interface card for OCP, with host management, EDR IB (100Gb/s) and 100GbE dual-port belly-to-belly QSFP28, PCIe Gen4.0 x16, no bracket

Intended Audience

This manual is intended for the installer and user of these cards. The manual assumes basic familiarity with Ethernet network and architecture specifications.

Technical Support

Customers who purchased Mellanox products directly from Mellanox are invited to contact us through the following methods:

Customers who purchased Mellanox M-1 Global Support Services, please see your contract for details regarding Technical Support.
Customers who purchased Mellanox products through a Mellanox approved reseller should first seek assistance through their reseller.

Related Documentation

Mellanox OFED for Linux User Manual and Release NotesUser Manual describing OFED features, performance, band diagnostic, tools content and configuration. See Mellanox OFED for Linux Documentation.
WinOF-2 for Windows User Manual and Release NotesUser Manual describing WinOF-2 features, performance, Ethernet diagnostic, tools content and configuration. See WinOF-2 for Windows Documentation.
Mellanox VMware for Ethernet User Manual and Release NotesUser Manual describing the various components of the Mellanox ConnectX® NATIVE ESXi stack. See http://www.mellanox.com Products > Software > Ethernet Drivers > VMware Driver
Mellanox Firmware Utility (mlxup) User Manual and Release NotesMellanox firmware update and query utility used to update the firmware. See http://www.mellanox.com > Products > Software > Firmware Tools >mlxup Firmware Utility
Mellanox Firmware Tools (MFT) User Manual

User Manual describing the set of MFT firmware management tools for a single node. See MFT User Manual.

IEEE Std 802.3 SpecificationIEEE Ethernet specification at http://standards.ieee.org/
PCI Express SpecificationsIndustry Standard PCI Express Base and Card Electromechanical Specifications at https://pcisig.com/specifications
Mellanox LinkX Interconnect Solutions

Mellanox LinkX InfiniBand cables and transceivers are designed to maximize the performance of High-Performance Computing networks, requiring high-bandwidth, low-latency connections between compute nodes and switch nodes. Mellanox offers one of industry’s broadest portfolio of QDR/FDR10 (40Gb/s), FDR (56Gb/s), EDR/HDR100 (100Gb/s) and HDR (200Gb/s) cables, including Direct Attach Copper cables (DACs), copper splitter cables, Active Optical Cables (AOCs) and transceivers in a wide range of lengths from 0.5m to 10km. In addition to meeting IBTA standards, Mellanox tests every product in an end-to-end environment ensuring a Bit Error Rate of less than 1E-15Read more at https://www.mellanox.com/products/interconnect/infiniband-overview.php

Open Compute Project 2.0 Specificationhttps://www.opencompute.org/


Document Conventions

When discussing memory sizes, MB and MBytes are used in this document to mean size in mega Bytes. The use of Mb or Mbits (small b) indicates size in mega bits. In this document PCIe is used to mean PCI Express.