PCIe x8 Mellanox ConnectX-4 Dual-Port 25G SFP28 adapter with 25Gb/s Ethernet connectivity addresses virtualized infrastructure challenges for today’s demanding market and applications. 

Providing true hardware-based I/O isolation with unmatched scalability and efficiency, ConnectX-4 provides a cost-effective and flexible Ethernet adapter solution for Web2.0, cloud, data analytics, database, and storage platforms.

It provide a combination of 25G bandwidth, sub-microsecond latency and a 75 million packets per second message rate. It include native hardware support for RDMA over Converged Ethernet(RoCE) , Ethernet stateless offload engines, 

Overlay Networks, GPUDirect technology and Mellanox Multi-Host Technology.

PRODUCT FEATURES

– Compliant with PCI Express Specification Revision 3.0,  2.0 and 1.1

– 2.5, 5.0, or 8.0GT/s link rate x8

– Auto-negotiates to x8, x4, x2, or x1

– Support for MSI/MSI-X mechanisms

– Supports dual-Port 25G, 10G, or 1Gb/s SFP+

– 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