






Compliant with PCI Express Specification Revision 3.0,1.1 and 2.0
2.5,5.0, or 8.0GT/s link rate x8
Auto-negotiates to x8, x4, x2, or x1
Connecter interface: Open Compute Project Intel Motherboard spec V2.0
Support for MSI/MSI-X mechanisms
Supports 25G,10G, or 1Gb/s SFP28
IEEE802.3by,25G supporting all FEC modes
IEEE802.3az Energy Efficient Ethernet
IEEE802.3ap based auto-negotiation and KR startup
Support Standards IEEE802.3ad, IEEE802.1ax, IEEE802.1Q, IEEE802.1P, IEEE802.1Qaz, IEEE802.1Qbb, IEEE802.1Qbg, IEEE1588V2
Jumbo frame support 9.6KB
Independent NC-SI SMBus interface
Independent stand-by and wake-on-Lan signals
Hardware-based reliable transport
Collective operation offloads
PeerDirect RDMA (aka GPUDirect communication acceleration)
64/66 encoding
Extended Reliable connected transport
Dynamically connected transport
RDMA over Converged Ethernet (RoCE)
TCP/UDP/IP stateless offload
LSO.LRO. checksum offload
Hardware offload of encapsulation and decapsulation of NVGRE and VXLAN overlay networks
SR-IOV, Multi-function, Enhanced QoS, VMware support
SR-IOV up to 256 virtual functions
SR-IOV up to 8 physical functions per port
Guaranteed QoS for VMs
OpenMPI, IBM PE, OSU MPI, Intel MPI protocol support
NC-SI over MCTP over SMBus and NC-SI over MCTP over PCIe-Baseboard Management Controller interface
Remote boot over Ethernet, iSCSI, PXE, and UEFI
Supports Operation Systems: FreeBSD, Linux5.x and above, VMware5.5/6.0/6.5/6.7, Windows server2008/2012/2016/2019, win7/win8/win8.1/win10 32 or 64bit
Package content
1 x OCP2.0 Mellanox Connectx-4 Single-Port 25G SFP28 adapter
1 x Users Manual
1 x CD Driver
1 x Low profile bracket
Accessories
System Requirements
FreeBSD, Linux , VMWare ESXi
Win-server2008 R2/ Win-server2012 R2/ Win-server2016/Win-server2019
Windows: 7/8/8.1/10/11 32/64bit
One available Open Compute Project Intel Motherboard slot
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Hardware installation
1.Turn off the computer and unplug the power cord
2.Remove the computer cover and the adapter slot cover from the slot that matches your adapter
3.Insert the adapter edge connector into the slot and secure the bracket to the chassis
4.Replace the computer cover ,then plug in the power cord
5.Power on the computer
Install Drivers and software
Windows Operating Systems
You must have administrative rights to the operating system to install the drivers.
1.insert the CD driver bound with Mellanox network driver into your CD-ROM drive:
2.if the Found New Hardware Wizard screen is displayed, click Cancel
3.select a driver based on the system type
for Windows Server type: (Assume that D):
D:\NIC Drivers\Mellanox\ConnectionX-4\Windows Server
for Windows type: (Assume that D):
D:\NIC Drivers\Mellanox\ConnectionX-4\Windows Client
4.Double click the driver corresponding to the system.
5.Follow the instructions in the install wizard to finish it.
Installing Linux Drivers from Source Code
1.Download and expand the base driver tar file.
2.Compile the driver module.
3.Install the module using the modprobe command.
4.Assign an IP address using the ifconfig command.
Support
More information and settings, please refer to the Adapter User Guides or you can contact us.