MCX4121A-ACAT ConnectX®-4 Lx EN Nic Network Interface Card 25GbE Dual Port SFP28
Product Details:
Brand Name: | Mellanox |
Model Number: | MCX4121A-ACAT |
Document: | connectx-4-lx-en-card.pdf |
Payment & Shipping Terms:
Minimum Order Quantity: | 1pcs |
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Price: | Negotiate |
Packaging Details: | outer box |
Delivery Time: | Based on inventory |
Payment Terms: | T/T |
Supply Ability: | Supply by project/batch |
Detail Information |
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Products Status: | Stock | Application: | Server |
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Condition: | New And Original | Type: | Wired |
Max Speed: | 25Gb/s | Name: | Mellanox Network Card MCX4121A-ACAT ConnectX®-4 Lx EN Network Interface Card, 25GbE Dual-Port SFP28 |
Keywords: | Mellanox Network Card | ||
Highlight: | CONNECTX 4 LX EN MCX4121A ACAT,25GbE Nic Network Interface Card,SFP28 Nic Network Interface Card |
Product Description
Mellanox ConnectX-4 Lx EN Network Adapter MCX4121A-ACAT
Premium Dual-Port 25GbE Network Card
The Mellanox ConnectX-4 Lx EN MCX4121A-ACAT represents the pinnacle of Ethernet adapter technology, delivering exceptional bandwidth and ultra-low latency for demanding enterprise environments. This advanced network card features dual 25GbE ports with comprehensive hardware offloading capabilities, making it ideal for data-intensive applications, cloud infrastructure, and high-performance computing clusters. With its robust feature set and reliable performance, this NIC card establishes new standards for efficiency in modern data center deployments.
Technical Specifications
Advanced Feature Set
Performance Features
- Dual-port 25GbE connectivity
- Hardware offload for overlay networks
- RoCE (RDMA over Converged Ethernet)
- PCIe 3.0 x8 host interface
Virtualization Support
- SR-IOV with 256 virtual functions
- Hardware-based I/O isolation
- Multi-tenant security
- Quality of Service (QoS) controls
Deployment Applications
This high-performance network card is ideally suited for:
- Cloud computing infrastructure
- Enterprise data centers
- High-frequency trading systems
- Big data analytics platforms
- AI and machine learning workloads
- Network storage solutions
- Virtualized environments
- High-performance computing
Technical Advantages
The ConnectX-4 Lx EN network card delivers significant benefits over conventional solutions:
- Reduced Latency: Hardware acceleration minimizes processing delays
- Improved Efficiency: CPU offloading enhances overall system performance
- Enhanced Scalability: Supports growing network demands
- Superior Reliability: Enterprise-grade components ensure continuous operation
- Energy Efficient: Advanced power management reduces operational costs
Support & Services
We provide comprehensive support services including:
- 24/7 technical assistance
- Extended warranty options
- Configuration guidance
- Integration support
- Firmware updates
- Replacement services
Frequently Asked Questions
Q: What makes this network card suitable for virtualized environments?
A: The card supports SR-IOV virtualization with 256 virtual functions, providing dedicated resources and guaranteed isolation for virtual machines while maintaining high performance.
Q: Can this NIC card operate in existing 10GbE infrastructure?
A: Yes, the adapter is backward compatible with 10GbE networks, allowing seamless integration with existing infrastructure while providing a migration path to higher speeds.
Q: What management interfaces are supported?
A: The card supports standard management interfaces including NC-SI over MCTP, providing comprehensive monitoring and control capabilities.
Implementation Guidelines
For optimal performance:
- Ensure adequate system cooling for sustained high-throughput operations
- Use qualified optical transceivers and cables
- Verify PCIe slot compatibility and available power
- Update to latest firmware version before deployment
- Configure appropriate driver settings for your specific workload
Company Overview

With over a decade of industry experience, our company operates state-of-the-art manufacturing facilities supported by an expert technical team. We have established an extensive global client base through our commitment to delivering premium networking solutions at competitive prices. Our product portfolio includes leading brands such as Mellanox, Ruckus, Aruba, and Extreme, featuring genuine network switches, interface cards, wireless solutions, and comprehensive connectivity products.
We maintain substantial inventory valued at over $10 million, enabling rapid delivery of diverse product types in commercial quantities. Our service commitment extends beyond transaction completion to include continuous technical support and consultation. Our professional team has earned recognition for excellence in international markets through consistent delivery of quality solutions and reliable partnership.