NVIDIA ConnectX-6 Lx 25/50G Ethernet SmartNIC - MCX631432AN-ADAB
Product Overview
The NVIDIA ConnectX-6 Lx MCX631432AN-ADAB is a high-performance Ethernet SmartNIC designed for modern enterprise and cloud data centers. Supporting dual 25GbE or single 50GbE ports, this network card delivers exceptional throughput, advanced security, and scalable RoCE capabilities. It is engineered to optimize virtualized environments, reduce CPU overhead, and provide robust networking solutions with superior total cost of ownership.
Key Characteristics
- Dual-port 25GbE or single-port 50GbE connectivity
- PCIe Gen4 x8 host interface
- Zero-Touch RoCE for seamless deployment
- ASAP² technology for SDN and VNF acceleration
- Hardware-accelerated IPsec encryption and decryption
- Hardware root-of-trust for secure boot and firmware updates
Core Technologies
The ConnectX-6 Lx NIC leverages several advanced technologies including RDMA over Converged Ethernet (RoCE), Accelerated Switch and Packet Processing (ASAP²), and Single Root I/O Virtualization (SR-IOV). It supports overlay network protocols such as VXLAN, GENEVE, and NVGRE, and provides hardware offload for IPsec and connection tracking.
Working Principle
The SmartNIC offloads network processing tasks from the host CPU to dedicated hardware. Through ASAP², it handles software-defined networking (SDN) data plane operations, while RoCE enables high-speed remote direct memory access. Inline crypto acceleration processes IPsec traffic without burdening the host, ensuring both performance and security.
Applications
Ideal for cloud data centers, enterprise networks, and communication service providers (CSPs), this network card is suited for virtualized servers, NFV infrastructure, high-performance computing, and storage platforms. It supports both bare-metal and virtualized deployments with SR-IOV and VirtIO interfaces.
Specification Table
| Attribute | Value |
| Model | MCX631432AN-ADAB |
| Ports | 2x 25GbE or 1x 50GbE |
| Interface | PCIe Gen4 x8 |
| Form Factor | OCP 3.0 SFF |
| Throughput | 75 Mpps |
| Security | IPsec, AES-XTS, Hardware RoT |
| Protocols | RoCE, VXLAN, GENEVE, NVGRE |
Advantages
Compared to previous generations and competing products, the ConnectX-6 Lx offers higher packet processing rates, improved energy efficiency, and enhanced security features. Its Zero-Touch RoCE technology simplifies deployment without requiring network configuration changes.
Service and Support
We provide a standard manufacturer warranty, rapid delivery, and 24/7 technical support. Our team offers integration assistance and custom configuration services to ensure seamless deployment.
Frequently Asked Questions
Q: Does this NIC support PXE boot?
A: Yes, it supports PXE boot as well as UEFI boot for both x86 and Arm servers.
Q: Can it be used in a virtualized environment?
A: Absolutely. It supports SR-IOV and VirtIO for high-performance virtualization.
Q: Is IPsec acceleration supported?
A: Yes, the card includes inline hardware acceleration for IPsec encryption and decryption.
Precautions
Ensure compatibility with your server's PCIe slot (Gen3 or Gen4 x8). For optimal performance, use certified cables and transceivers. Firmware should be updated to the latest version for security and feature availability.
Company Introduction
With over a decade of industry experience, our company operates a large-scale facility supported by a strong technical team. We represent leading brands including Mellanox, Ruckus, Aruba, and Extreme. Our inventory includes millions of products such as network switches, NIC cards, wireless access points, and cables. We are committed to providing competitive pricing, reliable delivery, and round-the-clock customer and technical support.
