PCIE GEN 3.0 X8 to 2X 25GbE SFP28 Optical Ports Intelligent RDMA Converged Ethernet Adapter for HPC, Storage and Virtualization, Mellanox ConnectX-4 Lx MT27711A0 25Gb/s Ethernet Controller (CX4121A)

FebSmart CX4121A is a PCIE GEN 3.0 X8 interface to 2X 25Gb/s SFP28 optical ports intelligent RDMA ethernet adapter, designed for Web 2.0, Cloud, Data Analytics, Storage and Telecom platforms. PCIE GEN 3.0 standard, support 8GT/s per LANE. PCIE X8 bus interface, provide 64Gb/s bandwidth ensure 2X SFP28 optical ports archive 25GbE concurrently. Powered by Mellanox ConnectX-4 Lx MT27711A0 2X 25GbE SFP28 Ports Converged Ethernet Controller, bring latest RDMA, SR-IOV, RoCE V2, Network Overlay, Multi-Host, Peer Direct technology into Data Centers. Hardware-based RDMA engine, bypassing CPU and kernel, enabling direct memory access with submicrosecond latency and up to 25Gbps bandwidth under lossless RDMA over Converged Ethernet (RoCE V2) Protocols. SR-IOV technology provides dedicated adapter resources and guaranteed isolation and protection for virtual machines within the server. Supports up to 512 virtual and 16 physical functions. Overlay Networks Technology, by providing advanced NVGRE, VXLAN and GENEVE hardware offloading, by passing TCP packet from the hardware offloading engines, to decrease CPU burden. Peer Direct communication provides high efficiency RDMA access by eliminating unnecessary internal data copies between components on the PCIE bus, therefore significantly reduces application run time. Multi-Host technology, allows multiple hosts to be connected into a single adapter by separating the PCIE lane into multiple and independent interfaces. Comply with Open Fabrics Enterprise Distribution (OFED) and Open Fabrics Windows Distribution (WinOF-2). Supports Passive or active 25GbE SFP28 AOC, DAC cables, and 25GbE SFP28 transceivers with optical cables.
ATTENTION: The FebSmart CX4121A is an OEM alternative engineered to substitute the Mellanox original model MCX4121A-ACAT in server deployment.

IEEE 802.3by, 25Gb/s, 50 Gb/s. IEEE 802.3ba 40Gb/s. IEEE 802.3ae 10Gb/s.
25G/50G Ethernet for 50/100/200GE PAM4 links. IEEE 802.3az Energy Efficient.
IEEE 802.3ap auto-negotiation and KR startup. IEEE 802.1Qbg. IEEE 1588V2.
IEEE 802.3ad, 802.1AX Link Aggregation. 20/40GBASE-R2, 50GBASE-R4 Ethernet.
Jumbo frame support (9.6KB). IEEE 802.1Q, 802.1P VLAN. IEEE 802.1Qaz. IEEE 802.1Qbb.

Powered by Mellanox ConnectX-4 Lx MT27711A0 2X 25GbE SFP28 Ports Converged Ethernet Controller.
Bring latest RDMA, SR-IOV, RoCE V2, Network Overlay, Multi-Host, Peer Direct technology into Data Centers.

IEEE 802.3by, 25Gb/s, 50 Gb/s. IEEE 802.3ba 40Gb/s. IEEE 802.3ae 10Gb/s.
25G/50G Ethernet for 50/100/200GE PAM4 Links Switches.

Plug and play on Windows Server 2025, 2022, 2019, 2016, 2012 64bit and Windows 11, 10, 8.x 32/64bit systems.
Support RHEL, Cent OS, Free BSD, VMware and other Linux kernel-basedsystems.

Comply with Open Fabrics Enterprise Distribution (OFED) and Open Fabrics Windows Distribution (WinOF-2).
Supports Passive or active 25GbE SFP28 AOC, DAC cables, and 25GbE SFP28 transceivers with optical cables.

PCIE GEN 3.0 standard, PCIE X8 interface, provide 64Gb/s bandwidth ensure 2X SFP28 ethernet ports archive 25GbE concurrently.
Works on Motherboard PCIE X8 or X16 slot. Supports PCIE 5.0, 4.0 and 3.0 slot in full speed 2X 25GbE.

Full Height Bracket Mounted on the PCIE NIC Card, Will Works on Standard Size PC.
Low Profile Bracket Packed in the Box, Will Works on Slim PC.
FebSmart CX4121A is a PCIE GEN 3.0 X8 interface to 2X 25Gb/s SFP28 optical ports intelligent RDMA ethernet adapter, designed for Web 2.0, Cloud, Data Analytics, Storage and Telecom platforms. PCIE GEN 3.0 standard, support 8GT/s per LANE. PCIE X8 bus interface, provide 64Gb/s bandwidth ensure 2X SFP28 optical ports archive 25GbE concurrently. Powered by Mellanox ConnectX-4 Lx MT27711A0 2X 25GbE SFP28 Ports Converged Ethernet Controller, bring latest RDMA, SR-IOV, RoCE V2, Network Overlay, Multi-Host, Peer Direct technology into Data Centers. Hardware-based RDMA engine, bypassing C