MCX631102AC-ADAT Mellanox ConnectX-6 LX EN 25GbE 2-Ports Adapter Card

Mellanox MCX631102AC-ADAT 25GbE 2-Port Adapter Overview

The Mellanox MCX631102AC-ADAT ConnectX-6 Lx Ethernet adapter card is a high-performance networking solution engineered for enterprise data centers, cloud computing, virtualization, software-defined networking (SDN), and high-speed storage environments. Designed with the advanced NVIDIA ConnectX-6 Lx controller, this dual-port 25GbE PCI Express adapter delivers exceptional bandwidth, ultra-low latency, and intelligent acceleration features that help modern IT infrastructures achieve superior network efficiency and scalability.

Supporting dual 25 Gigabit Ethernet connectivity through SFP28 interfaces, the MCX631102AC-ADAT network adapter enables businesses to handle demanding workloads while reducing network congestion and improving application responsiveness. Whether deployed in virtualization clusters, enterprise servers, cloud platforms, or storage networks, this PCIe Gen4 adapter provides outstanding reliability, consistent throughput, and investment protection.

General Product Information

• Manufacturer: Mellanox
• Part Number: MCX631102AC-ADAT
• Marketing Part Number: 900-9X662-0083-ST0
• Product Type: Ethernet Network Adapter

Technical Specifications

Network Specifications

• NVIDIA ConnectX-6 Lx controller
• Dual 25GbE Ethernet ports
• SFP28 network interfaces
• Ethernet protocol support

Host Interface

• PCI Express 4.0 x8
• Backward compatible with PCIe 3.0

Physical Characteristics

• Half-Height Half-Length (HHHL)
• Plug-in adapter card
• Tall/full-height bracket included

Key Product Features

• Controller: NVIDIA ConnectX-6 Lx
• Maximum Data Rate: 25GbE per port
• Dual SFP28 network interfaces
• PCI Express 4.0 x8 host interface
• Backward compatible with PCIe 3.0 platforms
• Half-Height Half-Length (HHHL) form factor
• Full-height mounting bracket included
• Supports Ethernet networking protocol

Benefits of the ConnectX-6 Lx Architecture

• High-bandwidth Ethernet performance
• Ultra-low network latency
• Reduced CPU utilization
• Intelligent hardware acceleration
• Optimized virtualization performance
• Efficient cloud infrastructure connectivity
• Improved storage networking capabilities
• Enhanced application responsiveness

Advantages of Dual-Port Networking

• Higher aggregate bandwidth
• Improved network redundancy
• Support for failover configurations
• Efficient traffic distribution
• Greater infrastructure flexibility
• Simplified network expansion
• Reliable enterprise connectivity

PCIe Interface Benefits

• High-speed server communication
• Optimized data transfer rates
• Reduced latency
• Excellent scalability
• Backward compatibility with PCIe Gen3
• Future-ready infrastructure support

Supported Media Types

• SFP28 fiber optic transceivers
• Direct Attach Copper (DAC) cables
• Short-distance data center connectivity
• Long-distance optical networking
• Flexible enterprise deployments

Mellanox MCX631102AC-ADAT ConnectX-6 LX EN 25GbE Adapter

The Mellanox MCX631102AC-ADAT ConnectX-6 LX EN 25GbE 2-Ports SFP28 PCIe 4.0 x8 Adapter Card is engineered to deliver advanced Ethernet connectivity for modern enterprise infrastructures, cloud environments, virtualization platforms, and high-performance data centers. Built upon the proven ConnectX-6 LX architecture, this network interface card provides outstanding bandwidth, exceptional reliability, and intelligent hardware acceleration that enables organizations to maximize network efficiency while minimizing CPU utilization. Businesses seeking consistent low-latency communication, improved workload performance, and scalable networking solutions benefit from this advanced Ethernet adapter across a wide range of deployment scenarios.

Designed for demanding server environments, the dual-port 25GbE adapter combines high-speed throughput with flexible deployment capabilities. The PCI Express 4.0 x8 interface significantly increases communication bandwidth between the server and the network adapter, ensuring that storage traffic, virtual machine communication, cloud-native applications, and database operations experience minimal bottlenecks. Whether deployed in virtualization clusters, software-defined storage, artificial intelligence infrastructures, or enterprise computing environments, this adapter offers dependable network performance while supporting future infrastructure expansion.

Advanced ConnectX-6 LX Ethernet Architecture

Next-Generation Intelligent Networking Platform

The ConnectX-6 LX architecture represents a significant advancement in Ethernet networking technology by integrating intelligent packet processing, hardware acceleration, and advanced offloading capabilities into a single high-performance adapter. This architecture allows servers to process increasing network traffic volumes without overwhelming processor resources, resulting in improved application responsiveness and higher overall system efficiency.

As enterprise applications continue generating larger datasets and more simultaneous network connections, organizations require networking hardware capable of supporting sustained throughput with consistent latency. The ConnectX-6 LX platform addresses these requirements by delivering optimized packet handling, intelligent traffic management, and enhanced communication efficiency across diverse workloads.

Optimized Performance for Enterprise Servers

The adapter is specifically designed to support enterprise servers operating under intensive workloads where reliable communication is essential. Database clusters, virtualization hosts, cloud platforms, backup environments, distributed storage systems, and analytics servers all benefit from the consistent bandwidth provided by the ConnectX-6 LX networking architecture. The combination of intelligent processing and high-speed connectivity enables organizations to consolidate workloads while maintaining stable network performance.

Dual-Port 25GbE Connectivity

Flexible High-Speed Ethernet Connections

Featuring two independent SFP28 ports, the Mellanox MCX631102AC-ADAT enables simultaneous high-speed network connectivity for redundancy, load balancing, network segmentation, or increased aggregate bandwidth. Dual-port configurations provide administrators with greater flexibility when designing resilient network infrastructures capable of supporting business-critical operations.

The 25 Gigabit Ethernet standard represents an ideal balance between performance, scalability, and infrastructure cost. Many modern enterprises are migrating from traditional 10GbE environments toward 25GbE because it delivers substantially higher bandwidth without requiring extensive infrastructure redesign. This makes the adapter an excellent investment for organizations planning network upgrades while protecting long-term infrastructure investments.

Support for SFP28 Optical and Direct Attach Solutions

The integrated SFP28 interfaces allow organizations to select networking media according to deployment requirements. Short-distance server connections can utilize cost-effective Direct Attach Copper cables, while multimode and single-mode optical transceivers provide flexibility for larger data center deployments requiring extended transmission distances. This versatility enables seamless integration into both existing and newly deployed Ethernet infrastructures.

PCI Express 4.0 x8 High-Speed Host Interface

Enhanced Server Communication Bandwidth

The PCI Express 4.0 x8 interface dramatically increases communication bandwidth between the network adapter and host server. This improvement becomes increasingly important as networking speeds continue growing and enterprise applications demand higher throughput. The faster PCIe interface ensures that network traffic is transferred efficiently without introducing unnecessary bottlenecks within the server architecture.

Organizations deploying virtualization, storage networking, machine learning, or high-performance computing workloads benefit from the increased internal bandwidth provided by PCIe Gen4 technology. Even under continuous network utilization, the adapter maintains efficient communication with server resources while supporting sustained data movement across multiple applications.

Future-Ready Infrastructure Compatibility

PCIe 4.0 compatibility prepares enterprise infrastructure for future expansion by providing additional bandwidth headroom for emerging applications. As organizations adopt increasingly data-intensive workloads, this advanced host interface helps maintain optimal networking performance throughout future server upgrades and infrastructure modernization projects.

Exceptional Virtualization Support

Designed for Modern Hypervisor Environments

Virtualization remains a fundamental component of enterprise computing, allowing organizations to maximize hardware utilization while simplifying infrastructure management. The ConnectX-6 LX adapter is optimized for virtualized environments where numerous virtual machines simultaneously generate network traffic. Advanced hardware acceleration reduces processing overhead while improving virtual machine responsiveness and overall host efficiency.

Enterprise virtualization platforms frequently rely on network adapters capable of maintaining consistent latency despite rapidly changing traffic patterns. The intelligent networking capabilities integrated into the ConnectX-6 LX platform help ensure predictable communication between virtual machines, storage systems, management platforms, and external network resources.

Hardware-Based Resource Optimization

By transferring many networking functions from the CPU directly to dedicated hardware, the adapter allows server processors to focus on application execution rather than packet processing. This balanced workload distribution improves server utilization while increasing the number of virtual workloads each physical host can efficiently support.

Cloud Infrastructure Optimization

Supporting Private and Hybrid Cloud Deployments

Modern cloud infrastructures demand network adapters capable of handling dynamic workloads with consistent performance. The Mellanox MCX631102AC-ADAT supports cloud computing environments by providing reliable throughput, low latency communication, and scalable networking resources suitable for private clouds, hybrid cloud deployments, and enterprise virtualization clusters.

Cloud orchestration platforms continuously provision, migrate, and manage virtual resources. These activities generate substantial east-west traffic inside the data center, making efficient server networking increasingly important. The ConnectX-6 LX architecture enables rapid communication between compute nodes, storage resources, and management services while maintaining overall infrastructure responsiveness.

Efficient East-West Network Traffic Management

As organizations expand containerized applications and microservices architectures, internal network traffic frequently exceeds traditional north-south communication volumes. High-speed 25GbE networking allows applications distributed across multiple servers to communicate efficiently without introducing latency that could impact business operations.

Low-Latency Networking for Critical Applications

Consistent Performance Under Heavy Workloads

Many enterprise applications require predictable network response times to maintain optimal user experiences and operational efficiency. Financial applications, transactional databases, storage replication, virtualization clusters, and real-time analytics platforms all benefit from the adapter's low-latency communication capabilities.

The intelligent packet processing mechanisms incorporated into the ConnectX-6 LX platform reduce communication delays while maintaining stable throughput during periods of heavy network utilization. This consistent performance contributes directly to improved application reliability and enhanced user productivity.

Hardware Acceleration Technologies

Integrated acceleration technologies minimize software processing requirements by performing numerous networking tasks directly within the adapter hardware. This architecture decreases processor overhead, shortens packet processing times, and improves overall server responsiveness across demanding enterprise workloads.

Storage Networking Performance

Supporting Modern Software-Defined Storage

Software-defined storage solutions require reliable high-bandwidth Ethernet connectivity capable of transporting significant volumes of storage traffic between compute nodes and storage clusters. The dual-port 25GbE architecture enables efficient communication for distributed storage platforms while supporting rapid data synchronization, backup operations, and disaster recovery activities.

Organizations implementing hyperconverged infrastructure frequently depend upon fast Ethernet networking to maintain storage performance across multiple physical servers. The ConnectX-6 LX adapter provides dependable connectivity that helps optimize storage responsiveness while reducing delays associated with large-scale data movement.

Reliable Data Transfer Capabilities

High-capacity storage environments continuously exchange large datasets between servers, backup systems, and storage arrays. Stable high-speed Ethernet connectivity contributes to faster backup windows, more efficient replication processes, and improved overall storage infrastructure performance.

Enterprise Security and Network Reliability

Designed for Business-Critical Operations

Enterprise networking hardware must deliver dependable operation while supporting secure communication across organizational infrastructure. The ConnectX-6 LX platform incorporates enterprise-grade networking technologies that contribute to stable communications, reduced downtime, and reliable long-term operation within mission-critical environments.

High-quality engineering and extensive compatibility testing help ensure seamless deployment across a broad range of enterprise servers and networking equipment. Organizations benefit from dependable connectivity capable of supporting continuous operations in demanding production environments.

Reliable Long-Term Network Operation

Data centers operate continuously throughout the year, making hardware reliability a primary consideration during infrastructure planning. The Mellanox MCX631102AC-ADAT is designed to provide consistent performance under sustained workloads while maintaining operational stability across diverse enterprise applications.

Compatibility Across Modern Enterprise Platforms

Broad Operating System Support

The adapter supports deployment across multiple enterprise operating systems commonly used in modern server environments. This broad compatibility simplifies integration into heterogeneous infrastructures where Linux, Windows Server, virtualization hypervisors, and cloud operating systems coexist within the same data center.

Comprehensive driver support enables organizations to standardize networking hardware across various workloads without sacrificing operating system flexibility. This consistency reduces administrative complexity while simplifying long-term infrastructure maintenance.

Integration with Existing Network Infrastructure

Organizations upgrading from earlier Ethernet technologies can integrate the ConnectX-6 LX adapter into existing switching environments while planning gradual infrastructure modernization. The adapter supports scalable deployment strategies that minimize operational disruption during network upgrades.

Scalable Networking for Future Growth

Supporting Expanding Data Center Requirements

Enterprise infrastructure requirements continue growing as organizations expand digital services, cloud adoption, analytics capabilities, and artificial intelligence initiatives. The Mellanox MCX631102AC-ADAT provides scalable networking performance capable of supporting future server deployments without requiring immediate hardware replacement.

The combination of dual-port 25GbE connectivity, PCIe 4.0 bandwidth, intelligent hardware acceleration, and advanced ConnectX-6 LX technology positions this adapter as an excellent long-term networking solution for organizations seeking dependable performance, infrastructure scalability, and operational efficiency. Whether deployed in enterprise computing environments, virtualization clusters, software-defined storage platforms, cloud infrastructures, or high-performance data centers, this Ethernet adapter delivers the speed, reliability, flexibility, and advanced networking capabilities required by today's increasingly demanding digital workloads.