540-BCXN Dell Mellanox Connectx-6 Dx Dual Port 100GbE QSFP 56 PCI-E Adapter

Highlights of Dell Dual Port 100GBE PCI-E Adapter

The Dell 540-BCXN Mellanox CX623106A ConnectX-6 Dx EN Dual-Port 100GbE Ethernet Card is a next-generation enterprise networking solution engineered for ultra-fast connectivity. With PCI Express 4.0 support and QSFP56 ports, this adapter delivers exceptional throughput, reliability, and scalability for modern data centers and high-performance computing workloads.

Manufacturer Details

• Brand: Dell Technologies
• Part Number: 540-BCXN
• Device Type: Network Adapter

Technical Specifications

• Form Factor: Plug-in Card
• Interface: PCI Express 4.0 x16

Port Configuration

• Ports: Dual-port
• Port Type: QSFP56 (Quad Small Form-Factor Pluggable 56)
• Data Transfer Rate: Up to 100Gbps per port (200Gbps aggregate)
• Supported Speeds: 1/10/25/40/50/100GbE Ethernet
• Connectivity Technology: Wired

Features

• Provides PCIe 4.0 interface for maximum bandwidth
• Compact, space-saving design for efficient installation
• Ideal for high-performance networking applications

Compatibility

Rack Servers

• PowerEdge C6520 / C6525
• PowerEdge R640 / R650 / R6525
• PowerEdge R660 / R6615 / R6625
• PowerEdge R740 / R740xd / R740xd2
• PowerEdge R750 / R750xa / R7525
• PowerEdge R760 / R760xa / R760xd2
• PowerEdge R7615 / R7625
• PowerEdge R840 / R860
• PowerEdge R940 / R940xa / R960

XE Series Servers

• PowerEdge Xe8640
• PowerEdge Xe9640
• PowerEdge Xe9680

XR Rugged Servers

• PowerEdge XR12
• PowerEdge XR5610
• PowerEdge XR7620
• PowerEdge XR8610t
• PowerEdge XR8620t

Dell 540-BCXN Dual Port 100GbE PCI-E Adapter Overview

The Dell 540-BCXN Mellanox ConnectX-6 Dx Dual Port 100GbE QSFP56 PCI-E Adapter Low Profile represents a high-performance enterprise networking solution designed for modern data centers, cloud infrastructures, and high-throughput computing environments. Built on advanced Mellanox ConnectX-6 Dx architecture and engineered for Dell server ecosystems, this adapter delivers ultra-low latency, high bandwidth scalability, and enhanced offload capabilities that support demanding workloads such as artificial intelligence, machine learning, big data analytics, virtualization, and storage acceleration. With dual-port 100 Gigabit Ethernet connectivity through QSFP56 interfaces and PCI Express integration, this adapter is optimized for next-generation networking requirements.

Advanced Network Interface Architecture and Design

Next-Generation ConnectX-6 Dx Silicon Foundation

At the core of the Dell 540-BCXN adapter lies the Mellanox ConnectX-6 Dx controller, a cutting-edge network interface controller designed to maximize throughput while minimizing CPU overhead. This architecture integrates advanced packet processing engines, intelligent offloading capabilities, and enhanced security acceleration. The ConnectX-6 Dx platform is specifically engineered to handle high packet rates and low-latency communication, making it highly suitable for distributed computing systems and hyperscale environments where efficiency and reliability are essential.

Dual Port 100GbE QSFP56 Interface Design

The dual-port 100GbE QSFP56 interface provides exceptional network bandwidth density, allowing a single adapter to support up to 200Gbps aggregated throughput. QSFP56 technology enhances signal integrity and supports higher modulation rates compared to previous QSFP generations. This makes it ideal for spine-leaf data center architectures where east-west traffic dominates and ultra-fast inter-node communication is critical for application performance.

Low Profile PCIe Form Factor Optimization

Designed in a low profile PCIe form factor, the adapter ensures compatibility with a wide range of Dell PowerEdge servers and compact rack configurations. This design allows deployment in space-constrained environments while maintaining full performance capabilities. The PCIe interface ensures high-speed communication between the network adapter and the host system, reducing bottlenecks and enabling efficient data flow across system memory and network channels.

High-Performance Data Center Networking Capabilities

Ultra-Low Latency Packet Processing

The Dell 540-BCXN adapter is engineered to deliver ultra-low latency packet processing, which is essential for real-time applications such as high-frequency trading, distributed databases, and AI model training. The hardware-based packet processing pipeline reduces reliance on CPU cycles, ensuring that network traffic is handled efficiently with minimal delay. This results in predictable network performance even under heavy workloads.

High Throughput for Demanding Workloads

With support for dual 100GbE ports, this adapter enables massive data throughput suitable for bandwidth-intensive applications. Whether handling large-scale storage replication, distributed analytics, or virtualization clusters, the adapter maintains consistent high-speed data transfer rates. This makes it a critical component in modern hyperconverged infrastructure environments.

Efficient Traffic Management and Load Balancing

The adapter incorporates advanced traffic management features that optimize load balancing across network interfaces. It intelligently distributes data flows to ensure maximum utilization of available bandwidth while preventing congestion. This capability is particularly valuable in cloud environments where multiple virtual machines and containers share network resources dynamically.

Advanced Offload and Acceleration Technologies

Hardware Offload Engine Integration

The ConnectX-6 Dx architecture includes sophisticated hardware offload engines that reduce CPU utilization by handling networking tasks directly on the adapter. These offloads include checksum calculation, packet segmentation, encryption, and encapsulation processing. By shifting these tasks away from the CPU, system resources are freed for application-level workloads, improving overall system efficiency.

RDMA over Converged Ethernet (RoCE) Support

The adapter provides full support for RDMA over Converged Ethernet, enabling direct memory access between systems without involving the CPU. This significantly reduces latency and increases throughput in distributed computing environments. RoCE support is particularly beneficial for storage networks and high-performance computing clusters where rapid data exchange is critical.

Advanced Virtualization Offloads

Virtualization environments benefit greatly from the adapter’s support for SR-IOV and other virtualization offload technologies. These features allow multiple virtual machines to directly access the physical network interface with minimal overhead. This improves network performance in virtualized data centers and ensures better isolation and efficiency across workloads.

Enterprise and Cloud Data Center Applications

Scalable Cloud Infrastructure Deployment

The Dell 540-BCXN adapter is widely used in cloud computing environments where scalability and performance are essential. It supports large-scale deployment scenarios involving thousands of nodes interconnected through high-speed networking fabrics. The adapter ensures that cloud applications maintain consistent performance even under heavy multi-tenant workloads.

Big Data and Analytics Acceleration

In big data environments, large volumes of structured and unstructured data must be processed quickly and efficiently. The high bandwidth capabilities of this adapter allow seamless data ingestion and movement across distributed storage systems and compute clusters. This accelerates analytics pipelines and improves time-to-insight for business intelligence applications.

Artificial Intelligence and Machine Learning Workloads

AI and machine learning workloads require fast communication between GPUs, CPUs, and storage systems. The Dell 540-BCXN adapter provides the necessary network performance to support distributed training environments where large datasets are shared across nodes. Its low latency and high throughput characteristics ensure efficient synchronization of model parameters and training data.

Security and Data Protection Features

Hardware-Based Security Acceleration

Security is a critical component of modern networking infrastructure, and this adapter integrates hardware-based encryption acceleration to protect data in transit. By offloading cryptographic operations from the CPU, it ensures secure communication without compromising performance. This is essential for enterprise environments handling sensitive workloads and regulated data.

Secure Virtual Network Segmentation

The adapter supports secure segmentation of virtual networks, allowing administrators to isolate workloads and enforce security policies at the hardware level. This improves multi-tenant security in cloud environments and reduces the risk of unauthorized data access across virtual machines and containers.

Enhanced Firmware Integrity Protection

Firmware-level security mechanisms ensure that the adapter operates with verified and trusted software components. This protects against malicious modifications and ensures system integrity in enterprise deployments where security compliance is mandatory.

Storage Networking and Data Acceleration

High-Speed Storage Connectivity

The Dell 540-BCXN adapter plays a vital role in modern storage networking architectures, enabling high-speed connectivity between compute nodes and storage arrays. Its support for high-throughput Ethernet ensures that storage replication and distributed file systems operate efficiently without bottlenecks.

NVMe over Fabrics Optimization

NVMe over Fabrics environments benefit significantly from the adapter’s low latency and high bandwidth capabilities. It enables remote storage access with performance levels comparable to local storage devices. This is essential for modern enterprise storage architectures that rely on disaggregated infrastructure models.

Distributed Storage System Efficiency

In distributed storage systems, data must be replicated and synchronized across multiple nodes. The adapter ensures that these processes occur rapidly and efficiently, reducing latency and improving system reliability. This contributes to improved fault tolerance and data availability across enterprise storage networks.

Virtualization and Software-Defined Networking Support

Integration with Hypervisors and Virtual Platforms

The adapter is fully compatible with major virtualization platforms, enabling seamless integration into software-defined data centers. It supports advanced virtualization features that allow efficient sharing of network resources across multiple virtual machines while maintaining performance isolation.

Software-Defined Networking Compatibility

Software-defined networking environments benefit from the adapter’s programmability and flexibility. It supports dynamic network configuration, enabling administrators to adjust network behavior based on workload demands. This enhances agility in cloud-native environments and improves operational efficiency.

Containerized Application Networking

In containerized environments, the adapter ensures high-performance networking between microservices. It supports rapid scaling of container workloads while maintaining consistent network performance, which is critical for modern DevOps and microservices-based architectures.

Reliability, Scalability, and Enterprise Performance

Carrier-Grade Reliability Standards

The Dell 540-BCXN adapter is built to meet enterprise-grade reliability standards, ensuring consistent performance in mission-critical environments. It is designed for continuous operation under heavy workloads, making it suitable for 24/7 data center deployments.

Scalable Infrastructure Support

As enterprise workloads grow, the adapter provides scalable networking capabilities that support expansion without performance degradation. This scalability is essential for organizations transitioning to cloud-native and hybrid infrastructure models.

Optimized Power and Thermal Efficiency

Despite its high-performance capabilities, the adapter is engineered for power efficiency and thermal optimization. It minimizes energy consumption while maintaining high throughput, contributing to lower operational costs and improved data center sustainability.