Mellanox ConnectX-4 Lx EN Network Interface Card MCX4121A-ACAT

High-Performance Networking Solution

The Mellanox ConnectX-4 Lx EN MCX4121A-ACAT represents a significant advancement in Ethernet adapter technology, delivering exceptional performance for modern data center environments. This network card offers dual-port 25GbE connectivity with support for RDMA over Converged Ethernet (RoCE), hardware offloads for overlay networks, and advanced virtualization capabilities. Engineered for efficiency and scalability, this NIC card reduces CPU overhead while maximizing throughput, making it an ideal solution for cloud infrastructure, big data analytics, and high-performance computing applications.

Key Features & Capabilities

• Dual-port SFP28 configuration supporting 10GbE and 25GbE speeds
• Hardware offload for NVGRE, VXLAN, and GENEVE encapsulation protocols
• RDMA over Converged Ethernet (RoCE) for ultra-low latency communication
• SR-IOV virtualization supporting up to 256 virtual functions
• PCIe 3.0 x8 host interface with backward compatibility
• Energy Efficient Ethernet (EEE) compliance reducing power consumption
• Advanced quality of service (QoS) and congestion control mechanisms

Advanced Technologies

The ConnectX-4 Lx EN network card incorporates cutting-edge technologies including RoCEv2 for remote direct memory access, hardware-based encapsulation/decapsulation for overlay networks (VXLAN, NVGRE, GENEVE), and single-root I/O virtualization (SR-IOV). This network interface card supports various Ethernet standards including IEEE 802.3by, 802.3bj, and Data Center Bridging (DCB) protocols, ensuring compatibility and optimal performance in diverse network environments.

Operational Mechanism

This sophisticated network card operates by offloading network processing tasks from the host CPU through specialized hardware acceleration. It manages packet processing, encapsulation/decapsulation of overlay networks, and RDMA operations directly in hardware, significantly reducing latency and CPU utilization. The card's intelligent firmware orchestrates traffic flow, implements quality of service policies, and manages virtualization partitioning, ensuring optimal performance across various workloads.

Application Scenarios

• Cloud computing infrastructure and hyperscale data centers
• Big data analytics and processing platforms
• Virtualized data centers and software-defined networking
• High-performance computing clusters and scientific research
• Storage area networks (SAN) and network-attached storage
• Machine learning and artificial intelligence workloads
• Financial services and high-frequency trading systems

Technical Specifications

Competitive Advantages

• Superior price-performance ratio compared to similar network cards
• Hardware offloading capabilities significantly reduce CPU utilization
• Advanced virtualization features enabling efficient resource allocation
• Comprehensive overlay network support for modern data centers
• Backward compatibility with existing 10GbE infrastructure
• Energy-efficient design reducing operational costs
• Robust management and monitoring capabilities

Service & Support

We provide comprehensive technical support, 24/7 customer service, and extensive warranty coverage. All products undergo rigorous testing to ensure full functionality and reliability. We offer flexible delivery options and integration assistance for large-scale deployments, with dedicated technical consultants available for complex implementations.

Frequently Asked Questions

Installation & Usage Notes

• Ensure adequate cooling as high network throughput may generate significant heat
• Verify compatibility with your server's PCIe slot configuration and operating system
• Use qualified cables and transceivers to ensure optimal performance and reliability
• Regularly update firmware to access the latest security and performance enhancements
• Consult technical documentation for proper configuration of advanced features like RoCE and SR-IOV

Company Profile

With over ten years of industry expertise, our organization maintains extensive manufacturing capabilities supported by a skilled technical team. We have developed a substantial client portfolio and accumulated significant experience in delivering premium networking solutions at competitive prices. Our product range encompasses leading brands including Mellanox, Ruckus, Aruba, and Extreme, featuring authentic brand-new network switches, network interface cards, wireless access points, controllers, and comprehensive cabling solutions.

We sustain an inventory exceeding $10 million in value, enabling us to provide diverse product categories in substantial quantities. Our commitment extends beyond product delivery to include round-the-clock customer consultation and technical assistance. Our professional sales and engineering teams have established our esteemed reputation in international markets.

IoT Management Systems - Scalable platforms for smart city and industrial applications

Network Monitoring & Management Systems - Real-time monitoring with 99.9% uptime reliability

Wireless Authentication Systems - Secure, enterprise-grade access control solutions

Custom Software Development - Tailored applications with full-cycle support

End-to-End Integration: From system design to deployment and maintenance

OEM/ODM Solutions: Customizable software and hardware integration packages

24/7 Technical Support: Multilingual support team with rapid response guarantee

Scalable Deployment: Supporting projects from SMEs to large-scale smart city implementations

✓ISO9001:2015 Certified quality management system

✓Advanced Development Standards - Following international best practices

✓Comprehensive Testing Protocols - Multi-stage quality validation process

✓Proven Track Record - Successfully deployed in 100+ large-scale integration projects

Rapid Deployment: Average project delivery 30% faster than industry standard

Cost-Effective Solutions: Direct manufacturer pricing with no intermediaries

Flexible Customization: Adaptable solutions meeting specific market requirements

Long-term Partnership: 95% client retention rate with ongoing technical support

Technical Excellence: Expert R&D team with 10+ years average experience

Quality Commitment: Zero critical system failures in deployed projects

Innovation Focus: Continuous investment in emerging technologies (AI, IoT, Cloud)

Global Reach: Serving clients across Asia, Europe, and North America

Reliable Partnership: Built on principles of integrity, trust, and professional excellence

Track Record: 100+ Projects Completed | 500+ Satisfied Clients | 95% Retention Rate | Zero Critical Failures

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