MCX623436MS-CDAB Nvidia Connectx-6 Dx 100GBE Dual-port Adapter Card

Nvidia MCX623436MS-CDAB ConnectX-6 100GbE NIC Overview

The Nvidia MCX623436MS-CDAB ConnectX-6 Dx Ethernet Adapter Card is a high-performance networking solution engineered for modern data centers, enterprise infrastructure, cloud computing platforms, and high-performance computing (HPC) environments. Built with the advanced ConnectX-6 Dx architecture, this dual-port 100GbE network adapter delivers exceptional bandwidth, ultra-low latency, and outstanding efficiency for demanding workloads. Designed in the Open Compute Project (OCP) 3.0 Small Form Factor, it integrates seamlessly into next-generation servers while maximizing network performance and scalability.

Supporting PCI Express 4.0 x16 connectivity, the adapter provides significantly higher throughput than previous PCIe generations while maintaining backward compatibility with PCIe 2.0 and PCIe 1.1 platforms. With Secure Boot technology, Multi-Host and Socket Direct capabilities, and advanced hardware acceleration, the Nvidia MCX623436MS-CDAB enables organizations to build secure, intelligent, and highly efficient networking infrastructures.

General Information of Nvidia MCX623436MS-CDAB

• Manufacturer: Nvidia
• Part Number: MCX623436MS-CDAB
• Product Type: Network Interface Card
• Series: ConnectX-6 Dx

Technical Specifications

Hardware Specifications

• Form Factor: Open Compute Project (OCP) 3.0 Small Form Factor
• Network Ports: Dual QSFP56
• Network Speed: Dual 100 Gigabit Ethernet
• Total Throughput: Up to 200 Gbps
• Bus Interface: PCI Express 4.0 x16
• PCIe Compatibility: PCIe 4.0, PCIe 2.0, PCIe 1.1
• Bracket: Thumbscrew with Pull Tab

Advanced Features

• Secure Boot enabled.
• Crypto disabled configuration.
• Multi-Host technology.
• Socket Direct support.
• Advanced hardware offload engine.
• Virtualization acceleration.
• Cloud infrastructure optimization.
• AI and machine learning workload acceleration.
• Enterprise-grade networking performance.

Benefits of 100 Gigabit Ethernet

• Extremely high network throughput for enterprise applications.
• Reduced latency for mission-critical services.
• Optimized bandwidth utilization across multiple workloads.
• Reliable support for cloud-scale infrastructure.
• Enhanced performance for distributed storage environments.
• Efficient handling of AI, machine learning, and analytics traffic.
• Scalable networking for expanding data centers.

Flexible Cabling Support

• Optical fiber connectivity for long-distance deployments.
• Direct Attach Copper (DAC) cable compatibility.
• High-density switch connectivity.
• Data center spine-and-leaf architectures.
• Flexible migration between networking environments.

Advantages of PCIe Gen4 Technology

• Higher bandwidth between server CPU and network adapter.
• Reduced communication latency.
• Improved support for virtualization workloads.
• Optimized storage networking performance.
• Future-ready server compatibility.

Benefits of OCP 3.0 Design

• Space-efficient server integration.
• Improved thermal management.
• Simplified maintenance procedures.
• Standardized deployment across compatible platforms.
• Enhanced scalability for enterprise infrastructure.

Security Advantages

• Trusted firmware verification.
• Protection against unauthorized firmware execution.
• Improved platform integrity.
• Enhanced infrastructure security.
• Reliable hardware authentication.

Key Benefits of Multi-Host Architecture

• Shared adapter resources across multiple hosts.
• Lower infrastructure costs.
• Improved hardware utilization.
• Reduced power consumption.
• Simplified server networking architecture.
• Enhanced scalability.

Supported Workload Acceleration

• Virtual machine networking.
• Software Defined Networking (SDN).
• Network Functions Virtualization (NFV).
• Artificial Intelligence infrastructure.
• Machine learning clusters.
• High-performance storage networking.
• Cloud-native applications.
• Enterprise virtualization platforms.

Ideal Deployment Environments

• Enterprise data centers.
• Cloud computing platforms.
• Private cloud infrastructure.
• Hybrid cloud environments.
• High-performance computing clusters.
• Artificial intelligence platforms.
• Machine learning environments.
• Virtualized server farms.
• Software-defined data centers.
• Large-scale storage networks.

NVIDIA MCX623436MS-CDAB ConnectX-6 Dx EN Adapter Card

The NVIDIA MCX623436MS-CDAB ConnectX-6 Dx EN Adapter Card is a high-performance Ethernet networking solution engineered for modern enterprise infrastructure, cloud computing environments, hyperscale data centers, virtualization platforms, and high-performance computing deployments. Designed with dual-port 100GbE QSFP56 connectivity, PCI Express 4.0 x16 bandwidth, and an OCP 3.0 compliant form factor, this advanced network adapter delivers exceptional throughput, ultra-low latency, outstanding scalability, and intelligent hardware acceleration for demanding workloads. Organizations seeking reliable networking performance, enhanced server efficiency, and future-ready infrastructure benefit from the innovative technologies integrated into the ConnectX-6 Dx platform.

Built to support advanced Ethernet networking requirements, the adapter enables organizations to maximize bandwidth utilization while reducing CPU overhead through intelligent offloading capabilities. It is optimized for cloud-native applications, software-defined networking, virtualization technologies, artificial intelligence workloads, distributed storage, database clusters, containerized applications, and mission-critical enterprise services that demand consistently high-speed communication.

Designed for High-Speed 100GbE Enterprise Networking

The NVIDIA ConnectX-6 Dx family has become a preferred choice for organizations deploying next-generation Ethernet infrastructure. The MCX623436MS-CDAB model features dual QSFP56 ports supporting 100 Gigabit Ethernet connectivity, enabling exceptional network throughput while maintaining outstanding efficiency. The dual-port architecture allows administrators to implement network redundancy, link aggregation, traffic segmentation, or multi-network connectivity without requiring additional expansion cards.

As organizations transition toward data-intensive computing environments, faster Ethernet connectivity becomes increasingly important for reducing bottlenecks across application servers, virtualization clusters, storage systems, AI platforms, and edge computing infrastructure. The adapter supports these evolving requirements with enterprise-grade networking performance suitable for continuous operation.

Dual-Port QSFP56 Connectivity for Flexible Infrastructure

The integrated QSFP56 interfaces provide compatibility with modern high-speed optical transceivers and Direct Attach Copper cables used throughout enterprise and cloud networking environments. Dual-port connectivity offers flexible deployment options that simplify network architecture while improving overall availability. Administrators can configure separate production and storage networks, establish redundant communication paths, or dedicate individual ports to specialized workloads.

The flexibility of dual-port Ethernet connectivity enables data centers to support diverse networking strategies without sacrificing bandwidth, making the adapter suitable for both traditional enterprise deployments and large-scale cloud infrastructures.

OCP 3.0 Form Factor for Modern Server Platforms

The Open Compute Project OCP 3.0 specification has become an important standard for next-generation server networking. The MCX623436MS-CDAB adapter follows the OCP 3.0 design specification, allowing seamless integration into compatible enterprise servers while reducing cable complexity and maximizing internal airflow.

Unlike conventional PCIe expansion cards occupying standard expansion slots, OCP 3.0 adapters provide a dedicated networking interface that preserves valuable PCI Express slots for GPUs, storage controllers, FPGA accelerators, or additional compute hardware. This architecture improves server flexibility while supporting higher hardware density inside modern rack-mounted systems.

Optimized Data Center Integration

The compact OCP 3.0 design simplifies installation while enabling efficient thermal management across dense server deployments. Organizations deploying hyperscale infrastructure appreciate the standardized mechanical design because it streamlines hardware planning, maintenance, and server lifecycle management across large installations.

PCI Express 4.0 x16 Performance

Supporting PCI Express 4.0 x16 connectivity, the NVIDIA MCX623436MS-CDAB delivers sufficient host bandwidth to accommodate high-speed dual-port Ethernet traffic without introducing bottlenecks. PCIe Gen4 doubles the bandwidth available compared to previous-generation PCIe technology, ensuring servers can efficiently process network traffic generated by storage systems, virtualization platforms, AI applications, and cloud-native workloads.

The combination of PCIe Gen4 and 100GbE networking allows organizations to maximize overall infrastructure utilization while supporting increasing application demands. High-bandwidth connectivity is especially valuable for distributed computing environments where massive datasets are transferred continuously between servers.

Reduced Latency Across Critical Workloads

Low-latency communication remains essential for financial services, AI training, machine learning inference, real-time analytics, distributed databases, virtualization, and software-defined storage. The ConnectX-6 Dx architecture minimizes communication delays while accelerating packet processing through intelligent hardware optimization, improving application responsiveness across demanding enterprise environments.

Advanced ConnectX-6 Dx Ethernet Architecture

The ConnectX-6 Dx platform represents one of NVIDIA's most advanced Ethernet networking technologies. It incorporates numerous hardware accelerations designed to improve efficiency while reducing processor utilization. Instead of relying solely on CPU resources for networking operations, the adapter performs many networking tasks directly in hardware, freeing server processors to focus on application execution.

This architectural approach significantly enhances system efficiency across virtualized data centers, cloud infrastructure, enterprise databases, storage clusters, and container orchestration platforms.

Intelligent Hardware Offloading

Hardware acceleration reduces software processing overhead associated with network communication. This allows servers to process higher traffic volumes while maintaining lower processor utilization, resulting in improved application scalability and reduced infrastructure costs over time.

Efficient Resource Utilization

By handling networking operations directly within the adapter, system resources remain available for compute-intensive applications such as analytics, virtualization, scientific simulations, rendering, machine learning, and enterprise business applications.

Multi-Host and Socket Direct Capabilities

The NVIDIA MCX623436MS-CDAB supports Multi-Host or Socket Direct functionality, enabling efficient connectivity across modern multi-processor server architectures. These advanced technologies allow individual network interfaces to communicate more efficiently with multiple CPUs, reducing latency while improving bandwidth utilization across complex computing environments.

Socket Direct technology minimizes unnecessary communication between processors by establishing optimized pathways between network traffic and CPU sockets. This architecture improves application performance while lowering communication overhead in multi-socket servers.

Optimized Multi-Socket Server Performance

Large enterprise servers frequently utilize multiple processor sockets to maximize computing performance. Socket Direct networking complements these architectures by improving traffic distribution and reducing processor-to-processor communication, enhancing workload efficiency for virtualization, database processing, AI training, and scientific computing.

Secure Boot Protection

Security continues to play an increasingly important role in enterprise networking infrastructure. The MCX623436MS-CDAB incorporates Secure Boot functionality that helps protect adapter firmware from unauthorized modification during the startup process. Secure Boot verifies firmware authenticity before initialization, reducing the risk of compromised firmware affecting server operation.

This hardware-level protection contributes to a stronger security posture while supporting organizational compliance initiatives that require trusted hardware components throughout enterprise infrastructure.

Trusted Infrastructure Deployment

Secure firmware validation helps organizations deploy networking hardware with greater confidence. As cyber threats continue evolving, hardware security features provide another layer of protection that complements operating system security, network segmentation, identity management, and endpoint protection strategies.

No Crypto Configuration

The No Crypto version of the NVIDIA ConnectX-6 Dx adapter is specifically intended for deployment scenarios where organizations require networking hardware without integrated cryptographic functionality. This configuration simplifies procurement for environments subject to export regulations or specialized compliance requirements while maintaining the networking performance expected from the ConnectX-6 platform.

Organizations operating within regulated industries or multinational deployments may select No Crypto variants to satisfy regional deployment policies without sacrificing networking capabilities.

Host Management Support

Integrated Host Management capabilities simplify administration, monitoring, and lifecycle management across enterprise infrastructure. Administrators can efficiently monitor adapter status, manage firmware updates, collect diagnostics, and integrate networking hardware into centralized management frameworks that oversee large-scale server deployments.

Centralized hardware visibility contributes to proactive maintenance strategies that minimize downtime while improving operational efficiency throughout enterprise data centers.

Virtualization and Cloud Computing Optimization

The MCX623436MS-CDAB adapter is highly optimized for virtualized environments supporting VMware, Microsoft Hyper-V, KVM, OpenStack, Kubernetes, Red Hat virtualization platforms, and cloud-native infrastructure. Advanced hardware acceleration improves virtual machine networking performance while supporting higher virtual machine density on individual servers.

Cloud providers benefit from consistent networking performance across multi-tenant environments where efficient packet processing and low latency directly influence application responsiveness and infrastructure scalability.

Containerized Application Support

Container platforms require rapid communication between services distributed across multiple physical and virtual hosts. The ConnectX-6 Dx architecture accelerates east-west traffic while maintaining predictable networking performance that supports modern microservices architectures and container orchestration platforms.

Storage Networking Performance

Modern storage architectures increasingly depend upon high-speed Ethernet connectivity for software-defined storage, distributed file systems, object storage platforms, and hyperconverged infrastructure. The dual-port 100GbE design supports rapid data movement between storage nodes while maintaining consistent throughput during intensive read and write operations.

Organizations deploying network-attached storage, enterprise backup systems, data replication platforms, and disaster recovery environments benefit from reduced transfer times and improved storage responsiveness.

Supporting Software-Defined Storage

Storage platforms built upon Ethernet networking require adapters capable of maintaining reliable throughput under sustained workloads. ConnectX-6 Dx technology enables storage infrastructures to achieve higher operational efficiency while reducing latency associated with distributed storage communication.

Reliable Enterprise Deployment Features

Thumbscrew Pull Tab Bracket Design

The included thumbscrew pull tab bracket simplifies installation and maintenance procedures within enterprise servers. Service technicians can install or remove the adapter quickly while minimizing maintenance time during server upgrades or hardware replacement activities. The robust bracket design also contributes to secure physical installation within high-density rack environments.

Improved Serviceability

Efficient mechanical design reduces maintenance complexity across enterprise deployments containing hundreds or thousands of servers. Faster hardware servicing contributes to lower operational costs while minimizing infrastructure downtime.

Compatibility Across Enterprise Environments

The NVIDIA MCX623436MS-CDAB ConnectX-6 Dx EN Adapter Card integrates seamlessly into modern enterprise ecosystems supporting virtualization hosts, cloud infrastructure, edge computing, software-defined networking, storage clusters, AI systems, database platforms, analytics environments, web-scale applications, telecommunications infrastructure, and research computing facilities. Its standards-based Ethernet implementation ensures broad compatibility with modern networking equipment, enterprise switches, storage platforms, and server hardware.

Future-Ready Ethernet Connectivity

Organizations investing in long-term infrastructure modernization benefit from the combination of dual-port 100GbE connectivity, PCIe Gen4 bandwidth, OCP 3.0 compatibility, Secure Boot protection, Host Management functionality, Multi-Host and Socket Direct capabilities, enterprise-grade reliability, and advanced ConnectX-6 Dx networking technologies. These integrated features position the NVIDIA MCX623436MS-CDAB as an ideal solution for organizations seeking scalable, efficient, and high-performance Ethernet networking capable of supporting current workloads while accommodating future infrastructure growth.