NVIDIA Mellanox Launches MCX631432AN-ADAB ConnectX-6 Lx Adapter, Delivering Optimized 25GbE Performance with RDMA/RoCE

December 12, 2025

Laatste bedrijfsnieuws over NVIDIA Mellanox Launches MCX631432AN-ADAB ConnectX-6 Lx Adapter, Delivering Optimized 25GbE Performance with RDMA/RoCE

NVIDIA Mellanox expands its portfolio of high-performance Ethernet adapters with the release of the MCX631432AN-ADAB, a dual-port 25GbE solution engineered for balanced performance and efficiency. The NVIDIA Mellanox MCX631432AN-ADAB is designed to bring the benefits of RDMA/RoCE low-latency technology to mainstream servers, addressing the growing demand for faster data processing in enterprise and cloud data centers.

Technical Specifications and Core Advantages

The MCX631432AN-ADAB ConnectX-6 Lx dual-port 25GbE SFP28 adapter leverages PCIe 4.0 to provide ample bandwidth, preventing the network from becoming a bottleneck. It is a strategic choice for organizations upgrading from 10GbE or deploying new, cost-effective 25GbE leaf-spine architectures. Key features include:

  • Hardware-Accelerated RDMA: Supports both RoCE v1 and v2, enabling ultra-low latency communication crucial for clustered applications and distributed storage.
  • Intelligent Offloads: Comprehensive offloads for NVMe-oF, TCP/IP, and security protocols reduce host CPU overhead, improving overall server efficiency and throughput.
  • Dual SFP28 Ports: Offers flexibility for connectivity, supporting DAC, AOC, or optical modules, and enables link aggregation for redundancy and increased bandwidth.

For detailed engineering data, network planners should refer to the official MCX631432AN-ADAB datasheet. The complete MCX631432AN-ADAB specifications cover thermal, power, and compatibility details essential for seamless integration.

Deployment and Compatibility Insights

Successful deployment of the MCX631432AN-ADAB Ethernet adapter card hinges on proper network configuration. To achieve a lossless RoCE fabric, engineers must configure Priority Flow Control (PFC) and ECN on supporting switches. The adapter is widely MCX631432AN-ADAB compatible with major server OEM platforms and operating systems, including VMware ESXi, Linux, and Windows Server, simplifying its adoption into existing infrastructures.

Ideal Use Cases for the 25GbE Solution

The MCX631432AN-ADAB Ethernet adapter card solution is optimally positioned for several key scenarios where 25GbE offers the ideal price-to-performance ratio:

  • Virtualized Hosts and Cloud Infrastructure: Increases virtual machine density and performance by providing high bandwidth and low latency to hypervisors.
  • Software-Defined Storage (SDS) and CDNs: Accelerates data access and replication for solutions like Ceph and traditional NAS/SAN.
  • AI/ML Training Edge Clusters and Medium-Scale HPC: Facilitates efficient data pipeline feeding for GPU and CPU servers without the cost of higher-speed NICs.
Market Availability and Conclusion

The NVIDIA Mellanox MCX631432AN-ADAB provides a compelling upgrade path for networks seeking higher performance without a complete architectural overhaul. By delivering robust RDMA capabilities and trusted ConnectX-6 Lx reliability, it empowers organizations to build more responsive and scalable data centers. The MCX631432AN-ADAB for sale is now available through NVIDIA's global network of distributors and partners. For specific MCX631432AN-ADAB price and volume licensing information, please contact your preferred supplier or learn more on the NVIDIA website.