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Main image of 10/25GbE Ethernet Network Adapter Card with Mellanox CX4 Lx Chipset MCX4111A-ACUT, Single SFP28 Port PCIE3.0 x8, 25G NIC Support Windows/Linux/VMare/OFED, UEFI Enable

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10/25GbE Ethernet Network Adapter Card with Mellanox CX4 Lx Chipset MCX4111A-ACUT, Single SFP28 Port PCIE3.0 x8, 25G NIC Support Windows/Linux/VMare/OFED, UEFI Enable

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Built in Mellanox ConnectX-4 chipset, the 25Gb Network server supports RDMA allowing real CPU offloads and kernel bypass and End-to-end QoS and congestion control to anticipate and eliminate congestion, reducing CPU resource consumption and drive extremely high packet rates and throughput.
PCIe 3.0 x 8 Host Interface and 25Gbps Single-Port Transmission. Auto Negotiation to 25gbps/10gbps/1gbps; Compatible with x8/x16 PCI Express slot.
1x SFP28 Port. Cabling Type: SFP28 Transceiver, DAC and AOC. Ethernet: 25GBASE-R, 20GBASE-KR2, 1000BASE-CX, 1000BASE-KX, 10GBASE-SR, 10GBASE-LR,10GBASE-ER, 10GBASE-CX4, 10GBASE-CR, 10GBASE-KR, SGMII.
Suported OS: Windows 8.1/10/11;Windows Server 2012R2/2016/2019/2022; FreeBSD 13; VMware ESXI 6.5/6.7/7.0; OpenFabrics Enterprise Distribution (OFED); OpenFabrics Windows Distribution (WinOF-2); Ubuntu 14.04/16.04/18.04/20.04/21.04; Debian 9.11/9.13/10.5/10.8; RHEL/CentOS 7.2-8.4 ect. Noted: DO NOT Support Win7.
UEFI Enable. Low and full height brac

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The 25gb CX4121A network interface card with 25Gb/s Ethernet connectivity enables data centers to leverage leading interconnect adapters to increase their operational efficiency to improve server utilization and maximize application productivity, while reducing total cost of ownership (TCO). Meets the needs of a variety of demanding markets and applications. Accelerated Switching and Packet Processing (ASAP) for Virtual Switches/RoutersLow Latency RDMA over Converged Ethernet (RoCE) Delivers High-performance ServicesCutting-edge Performance in Virtualized Overlay Networks including NFVEnd-to-end QoS and Congestion Control to Anticipate and Eliminate CongestionEfficient I/O Consolidation, Lowering Data Center Costs and ComplexitySupport Windows, RHEL/CentOS, VMware, FreeBSD, OFED and WinOF-2UEFI Enable

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First Listed on Newegg	March 01, 2026

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Item#: 9SIC4GSKT55110