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About This Manual
This User Manual describes NVIDIA® Mellanox® ConnectX®-5 and ConnectX®-5 Ex Ethernet 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 Ex and
ConnectX-5 Ethernet adapter cards for OCP Spec 2.0.
IC in Use
OPN
Marketing Description
ConnectX®-5
MCX542A-ACAN
ConnectX®-5 EN network interface card for
OCP2.0
,
Type 1
, with
host management
,
25GbE
dual
-port
SFP28
,
PCIe3.0 x16,
Halogen-free
, no bracket
MCX542B-ACAN
ConnectX®-5 EN network interface card for
OCP2.0
,
Type 1
, with
host management
,
25GbE
dual
-port
SFP28
,
PCIe3.0 x8,
Halogen-
free
, no bracket
MCX542B-ACUN
ConnectX®-5 EN network interface card for
OCP2.0
,
Type
1
, with
host management
,
25GbE
dual
-port
SFP28
,
PCIe3.0
x8
,
UEFI
Enabled (x86/ARM),
Halogen free, no bracket
MCX545B-GCUN
ConnectX®-5 EN network interface card for
OCP2.0,
Type 1
, with
hostmanagement,
50GbE,single-
port
QSFP28,PCIe3.0x16,UEFI
Enabled,
no bracket
MCX545B-CCUN
ConnectX®-5 EN network interface card for
OCP2.0
,
Type 1
, with
host management
,
100GbE
,
single
-port
QSFP28
,
PCIe3.0 x16
,
UEFI Enabled
, no bracket
MCX545A-CCAN
ConnectX®-5 EN network interface card for
OCP2.0
,
Type 2
, with
host management
,
100GbE
,
single
-port
QSFP28
,
PCIe3.0 x16
, no
bracket
MCX545A-CCUN
ConnectX®-5 EN network interface card for
OCP2.0
,
Type
2
, with
host management
,
100GbE
,
single
-port
QSFP28
,
PCIe3.0 x16
,
UEFI
Enabled
, no bracket
ConnectX®-5 Ex
MCX546A-BCAN
ConnectX®-5 Ex EN network interface card
for
OCP2.0
,
Type 2
,
40GbE
dual
-port
QSFP28
,
PCIe3.0 x16
, no bracket
MCX546A-CDAN
ConnectX®-5 Ex network interface card for
OCP2.0
,
Type 2
, with
host management
,
100GbE
dual
-port
QSFP28
,
PCIe4.0 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