Mellanox MCX4121A-ACAT ConnectX 4 Ethernet Adapter Card 25GbE Dual-Port SFP28 PCIe 3×8

The Mellanox MCX4121A-ACAT ConnectX-4 Ethernet adapter card is a high-performance, dual-port 25GbE SFP28 PCIe 3.0 x8 card, delivering up to 50Gbps bandwidth and optimized for cloud and data center workloads. Key features include RDMA over Ethernet, overlay networks, and NVMe over Fabrics, ensuring low latency and high throughput. Benefits include improved application performance, reduced CPU utilization, and increased scalability. Unique selling points include its high-speed connectivity, flexible networking options, and robust security features, making it ideal for demanding data center and cloud environments.

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Port๏ผš2
Products Status๏ผšNew / Pulled
Speed๏ผš25GbE
Packaging Details๏ผšBOX / Bulk
Application๏ผšServer

Product Spotlights

 

CPU Offloads:

RDMA over Converged Ethernet (RoCE)

TCP/UDP/IP stateless offload

LSO, LRO, checksum offload

RSS (can be done on encapsulated packet), TSS, VLAN insertion/ stripping, Receive flow steering

Intelligent interrupt coalescence

 

Hardware-Based I/O Virtualization:

Single Root IOV

Multi-function per port

Address translation and protection

Multiple queues per virtual machine

Enhanced QoS for vNICs

VMware NetQueue support

 

Enhanced Features:

Hardware-based reliable transport

Collective operations offloads

Vector collective operations offloads

Extended Reliable Connected transport (XRC)

Dynamically Connected transport (DCT)

Enhanced Atomic operations

Advanced memory mapping support, allowing user mode registration and remapping of memory (UMR)

On demand paging (ODP)

registratio

RDMA Technology Empowers EDC and HPC

RDMA allows real CPU offloads and kernel bypass, and, as such, RDMA-based applications provide better utilization of network HW resources while increasing speed and lowering link latencies.

Port

2
Products Status

New / Pulled
Speed

25GbE
Packaging Details

BOX / Bulk
Application

Server
Warranty

3 Years / 1 Year
Product Name

Mellanox MCX4121A-ACAT ConnectX 4 Ethernet Adapter Card 25GbE Dual-Port SFP28 PCIe 3×8
Host Interface

PCIe 3.0 x8
Brand

Mellanox
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