900-9X4B0-0052-0T1 Nvidia ConnectX-4 Lx EN 10GbE SFP28 PCIe Network Interface Card

Overview of the 10GbE Network Interface Card

The 900-9X4B0-0052-0T1 Nvidia ConnectX-4 Lx EN 10GbE SFP28 PCIe Network Interface Card is a high-performance Ethernet adapter engineered for enterprise-grade networking, cloud-scale infrastructure, storage networking, and advanced virtualization deployments. Designed to deliver reliable low-latency packet processing and exceptional throughput, this network interface card integrates Nvidia’s proven ConnectX architecture to support demanding modern workloads across data centers, hyperscale environments, and high-density server clusters.

Main Specification

• Brand: Nvidia 
• Part Number: 900-9X4B0-0052-0T1
• Product Type: Network Interface Card

Technical Features

• Product Family: ConnectX-4 Lx EN
• Interface Type: PCIe
• Network Speed: 10GbE
• Port Type: SFP28
• Form Factor: Standard PCIe expansion card
• Deployment Focus: Enterprise servers and data centers

Optical Fiber Support

• Short-range multimode fiber support
• Long-range single-mode fiber support
• High signal stability
• Reduced electromagnetic interference
• Scalable structured cabling deployment

SR-IOV Support

• Lower virtual machine latency
• Higher VM network throughput
• Reduced CPU overhead
• Improved application responsiveness
• Enhanced workload scalability

Broad Server Platform Support

• Dell PowerEdge servers
• HPE ProLiant systems
• Lenovo ThinkSystem servers
• Cisco UCS environments
• Supermicro enterprise platforms
• Custom-built virtualization hosts

Operating System and Driver Support

• Linux distributions
• Windows Server editions
• VMware ESXi
• Hyper-V platforms
• OpenStack deployments
• Container-focused operating systems

Nvidia 10GbE SFP28 PCIe Network Interface Card

Built on advanced PCI Express technology, the ConnectX-4 Lx EN adapter combines efficient hardware acceleration with intelligent packet processing capabilities to reduce CPU overhead while maximizing network efficiency. Supporting 10GbE connectivity through SFP28 interfaces, this NIC is optimized for bandwidth-intensive applications such as virtualization, software-defined networking, distributed storage, cloud-native services, and real-time data processing.

Organizations seeking scalable and secure Ethernet connectivity often choose the Nvidia ConnectX-4 Lx family because of its exceptional balance between affordability, performance, and advanced offload technologies. The 900-9X4B0-0052-0T1 model delivers enterprise reliability and consistent packet handling, making it suitable for deployment in mission-critical environments requiring continuous uptime and predictable performance.

Product Identification and Model 

The part number 900-9X4B0-0052-0T1 identifies a specialized Nvidia ConnectX-4 Lx EN Ethernet network adapter developed to support 10 Gigabit Ethernet networking over SFP28 optical or direct attach copper connections. As part of Nvidia’s enterprise networking portfolio, formerly recognized under Mellanox Technologies, this adapter incorporates intelligent hardware features designed to accelerate networking tasks and improve data flow efficiency.

This network interface card belongs to the ConnectX-4 Lx EN product category, which focuses on Ethernet-only networking solutions optimized for virtualization, storage acceleration, and cloud infrastructure. It provides advanced networking capabilities without unnecessary complexity, making it ideal for organizations that need robust Ethernet performance while maintaining manageable deployment costs.

Advanced Ethernet Performance for Infrastructure

The Nvidia ConnectX-4 Lx EN 10GbE adapter is designed to address the increasing demands of modern enterprise networking. As applications continue to require lower latency, higher throughput, and improved responsiveness, traditional network adapters often struggle to maintain efficiency under heavy traffic loads. The ConnectX-4 Lx architecture solves these challenges through intelligent packet acceleration and optimized hardware pipelines.

By enabling sustained 10 Gigabit Ethernet throughput, this adapter supports rapid data transfers between servers, storage arrays, and network appliances. Whether deployed in virtualization clusters or cloud infrastructure, the NIC helps eliminate network bottlenecks that can degrade application responsiveness.

High-speed Ethernet communication is essential for workloads such as database synchronization, distributed analytics, machine learning model training, and software-defined storage. The 900-9X4B0-0052-0T1 ensures consistent bandwidth availability while minimizing packet loss and reducing transmission delays.

Low-Latency Packet Processing

Latency reduction is one of the most valuable characteristics of the ConnectX-4 Lx EN platform. The adapter incorporates advanced hardware mechanisms that process packets directly on the NIC, minimizing delays caused by software-based networking stacks.

The 10GbE SFP28 capability ensures that servers can move large datasets rapidly across enterprise networks. This is particularly beneficial for organizations handling virtual machine migrations, backup operations, or distributed storage synchronization.

Throughput optimization is enhanced through multiple offload technologies embedded directly into the network adapter hardware, enabling more efficient packet aggregation and segmentation.

PCIe Architecture 

The PCIe interface enables the Nvidia ConnectX-4 Lx EN NIC to communicate directly with host servers at high speed. PCIe bandwidth plays a critical role in ensuring that network traffic can be transferred between CPU, memory, and storage subsystems without introducing internal bottlenecks.

This network card is engineered for compatibility with a broad range of enterprise server platforms from major manufacturers. Its standardized PCIe design simplifies integration into both new deployments and infrastructure upgrades.

Flexible PCIe Deployment

Standard PCIe compatibility allows easy installation in rack-mounted servers, edge computing systems, blade servers, and storage appliances. The adapter can be deployed in both dedicated network roles and converged infrastructure models where networking and storage traffic coexist.

SFP28 Connectivity and Cabling Flexibility

The inclusion of SFP28 connectivity offers extensive deployment flexibility. SFP28 ports support both optical transceivers and direct attach copper cables, enabling organizations to choose the most cost-effective connectivity method for their networking topology.

SFP28 technology provides improved signaling efficiency while supporting high-speed Ethernet communication across various distances.

Direct Attach Copper

For shorter rack-to-rack or intra-rack connections, direct attach copper cables provide a highly cost-efficient solution. DAC cabling reduces hardware expenses while maintaining low latency and excellent reliability.

Virtualization Acceleration

One of the primary advantages of the Nvidia ConnectX-4 Lx EN 10GbE NIC is its optimization for virtualization platforms. Virtualized environments place unique demands on network adapters because multiple virtual machines share a single physical networking interface.

The adapter addresses these demands through hardware-based virtualization acceleration features that improve workload isolation and enhance network efficiency.

Hypervisor

The 900-9X4B0-0052-0T1 supports major virtualization platforms including VMware vSphere, Microsoft Hyper-V, KVM, and Xen environments. Broad compatibility ensures seamless integration into existing enterprise virtualization ecosystems.

Storage Networking and Data Center Efficiency

Storage traffic often places heavy demands on network infrastructure. The Nvidia ConnectX-4 Lx EN adapter is designed to accelerate storage protocols and reduce data transfer bottlenecks.

Organizations deploying software-defined storage or network-attached storage benefit significantly from the adapter’s ability to handle high-volume storage communication efficiently.

Software-Defined Storage Support

Platforms such as Ceph, VMware vSAN, and other clustered storage environments rely heavily on consistent network performance. The ConnectX-4 Lx EN NIC provides the bandwidth and reliability required to maintain storage cluster health and responsiveness.

Hardware Offload Technologies

Hardware offload capabilities are central to the efficiency of the Nvidia ConnectX-4 Lx EN family. These technologies shift repetitive networking tasks from the CPU to dedicated NIC processors, freeing host resources for application workloads.

TCP Segmentation Offload

TCP segmentation offload allows the network adapter to handle packet segmentation independently, reducing CPU workload during high-volume data transfers.

Checksum Offload

By calculating packet checksums directly on the adapter, system resources are preserved and packet processing efficiency improves.

Receive Side Scaling

Receive Side Scaling distributes incoming network traffic across multiple CPU cores, enabling balanced workload processing and improved multi-core utilization.

Large Send Offload

Large Send Offload increases transmission efficiency by allowing larger data blocks to be processed before packet division occurs at the hardware level.

Security Features and Network Protection

Enterprise networking requires robust security capabilities. The Nvidia ConnectX-4 Lx EN adapter includes features designed to support secure communication and workload isolation.

Secure Virtualized Traffic Isolation

In multi-tenant environments, traffic separation is essential. The adapter supports hardware-based isolation mechanisms that help prevent unauthorized data access between workloads.

Reliable Data Integrity

Hardware validation and packet verification processes contribute to data integrity during transmission, reducing corruption risks and improving application trustworthiness.

Cloud Infrastructure Deployment Advantages

Public and private cloud environments require scalable networking hardware capable of supporting dynamic workloads. The 900-9X4B0-0052-0T1 is optimized for cloud deployments where agility and resource efficiency are critical.

Cloud operators benefit from the adapter’s ability to support dense virtualization, rapid provisioning, and predictable network performance.

Containerized Application Networking

Kubernetes and container orchestration systems demand low-latency networking and rapid east-west traffic movement. The ConnectX-4 Lx EN adapter supports these environments with accelerated packet handling and efficient network path optimization.

Multi-Tenant Resource Efficiency

Hardware-assisted workload separation improves tenant performance consistency while maximizing infrastructure utilization.

Energy Efficiency and Thermal Optimization

Modern data centers increasingly prioritize energy efficiency. The Nvidia ConnectX-4 Lx EN NIC is engineered to provide exceptional networking performance while maintaining optimized power consumption.

Lower power requirements reduce operating costs and support sustainable infrastructure initiatives.

Reduced Power Consumption

Compared to older-generation Ethernet adapters, the ConnectX-4 Lx platform delivers improved performance-per-watt ratios, helping organizations lower energy expenditures.

Stability

Efficient thermal management enables stable operation in dense rack environments where airflow and heat dissipation are critical.

Enterprise Reliability and Lifecycle Value

Reliability is essential for any network component deployed in production environments. Nvidia’s enterprise engineering standards ensure that the ConnectX-4 Lx EN adapter can operate continuously under demanding workloads.

Its durable design supports long service life, reducing replacement frequency and improving total cost of ownership.

Continuous Uptime Performance

Mission-critical workloads require uninterrupted network availability. The adapter’s stable architecture minimizes downtime risks and supports continuous business operations.

Long-Term Infrastructure 

Broad driver support and firmware maintenance ensure continued compatibility with evolving operating systems and server platforms.

Ideal Use Cases for the NIC

Organizations upgrading from legacy 1GbE or aging 10GbE adapters can achieve substantial improvements in throughput, latency, and operational efficiency by deploying the Nvidia ConnectX-4 Lx EN 10GbE SFP28 PCIe Network Interface Card.

With advanced offload capabilities, virtualization acceleration, secure packet handling, and broad platform compatibility, the 900-9X4B0-0052-0T1 remains an excellent choice for businesses seeking dependable enterprise Ethernet networking performance and scalable infrastructure growth.