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About This Manual

This User Manual describes Mellanox Technologies ConnectX®-5 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 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 ManualUser Manual describing OFED features, performance, band diagnostic, tools content and configuration. See http://www.mellanox.com > Products > Software > InfiniBand/VPDrivers > Mellanox OpenFabrics Enterprise Distribution for Linux (MLNX_OFED)
Mellanox OFED for Linux Release NotesRelease Notes for Mellanox OFED for Linux driver kit for Mellanox adapter cards. See http://www.mellanox.com >Products > Software > InfiniBand/VPI Drivers > Linux SW/Drivers > Release Notes
WinOF-2 for Windows User ManualUser Manual describing WinOF-2 features, performance, Ethernet diagnostic, tools content and configuration. See http://www.mellanox.com > Products > Software > InfiniBand/VPI Drivers > Mellanox OFED for Windows > WinOF-2 Release Notes
WinOF-2 for Windows Release NotesRelease notes for WinOF-2 driver kit for Mellanox adapter cards. See http://www.mellanox.com > Products > Software > InfiniBand/VPI Drivers > Mellanox OFED for Windows > WinOF-2 Release Notes
Mellanox VMware for Ethernet User ManualUser Manual describing the various components of the Mellanox ConnectX® NATIVE ESXi stack. See http://www.mellanox.com Products > Software > InfiniBand/VPI Drivers > VMware Driver > User Manual
Mellanox VMware for Ethernet Release NotesRelease notes for Mellanox ConnectX® NATIVE ESXi stack. See http://www.mellanox.com Software > InfiniBand/VPI Drivers > VMware Driver > Release Notes
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 http://www.mellanox.com > Products > Software > Firmware Tools

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
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.