MCX631102AS-ADAT Mellanox ConnectX-6 Lx EN Card 25GBE SFP28 PCI-E 4.0X8 Adapter

Mellanox MCX631102AS-ADAT 25GbE 2-Port Adapter Overview

The Mellanox MCX631102AS-ADAT ConnectX-6 Lx EN Network Adapter is a high-performance Ethernet connectivity solution engineered for modern enterprise data centers, cloud infrastructure, virtualization platforms, storage networks, and high-performance computing (HPC) environments. Featuring dual 25GbE SFP28 ports, PCI Express 4.0 x8 connectivity, Secure Boot technology, and a No Crypto design, this adapter delivers exceptional bandwidth, low latency, enhanced security, and outstanding efficiency for demanding workloads.

Built on the advanced NVIDIA Mellanox ConnectX-6 Lx architecture, the MCX631102AS-ADAT supports multiple Ethernet speeds including 1GbE, 10GbE, and 25GbE, allowing organizations to upgrade their network infrastructure without replacing existing equipment. Its versatile compatibility, intelligent acceleration technologies, and enterprise-grade reliability make it an ideal networking solution for virtualization, software-defined networking (SDN), cloud computing, AI applications, storage systems, and business-critical networking environments.

General Information of Mellanox MCX631102AS-ADAT

• Manufacturer: Mellanox
• Model: ConnectX-6 Lx EN
• Part Number: MCX631102AS-ADAT
• Product Type: Network Adapter

Technical Specifications

Interface Specifications

• PCI Express 4.0 x8 Interface
• PCIe 3.0 and PCIe 4.0 compatibility
• Dual SFP28 Ethernet ports

Networking Specifications

• 1Gb Ethernet
• 10Gb Ethernet
• 25Gb Ethernet
• GigE
• 10 GigE
• 25 Gigabit LAN

Supported Network Protocols

• TCP/IP
• UDP/IP
• iSCSI

Key Features of Mellanox MCX631102AS-ADAT

• Original Mellanox MCX631102AS-ADAT Network Adapter
• Advanced ConnectX-6 Lx Ethernet controller
• Dual-port 25GbE SFP28 network connectivity
• Supports 1GbE, 10GbE, and 25GbE Ethernet speeds
• PCI Express 4.0 x8 host interface
• Backward compatible with PCIe 3.0 platforms
• Secure Boot support for enhanced firmware protection
• No Crypto hardware configuration
• Low-latency, high-bandwidth networking performance
• Supports virtualization and cloud deployments
• Optimized for storage, AI, and HPC workloads
• Compact plug-in card form factor
• Enterprise-grade reliability and efficiency

Dual 25GbE SFP28 Ports for High-Speed Connectivity

• 1 Gigabit Ethernet
• 10 Gigabit Ethernet
• 25 Gigabit Ethernet
• Dual independent SFP28 interfaces
• Flexible fiber network deployment

PCIe Compatibility

• PCI Express 4.0 x8
• Backward compatible with PCI Express 3.0
• High-speed server communication
• Efficient data processing
• Reduced transmission latency

Supported Data Link Protocols

• Gigabit Ethernet (GigE)
• 10 Gigabit Ethernet
• 25 Gigabit LAN

Supported Network Protocols

• TCP/IP
• UDP/IP
• iSCSI

Security Advantages

• Firmware integrity verification
• Trusted boot process
• Enhanced infrastructure protection
• Improved deployment security
• Enterprise-ready platform security

Supported IEEE Standards

• IEEE 802.1Q VLAN tagging
• IEEE 802.1P traffic prioritization
• IEEE 802.3ad Link Aggregation (LACP)
• IEEE 802.3AE 10 Gigabit Ethernet
• IEEE 802.3AP Backplane Ethernet
• IEEE 802.3AZ Energy Efficient Ethernet
• IEEE 802.1QBB Priority Flow Control
• IEEE 802.1QAZ Enhanced Transmission Selection
• IEEE 802.1QBG Edge Virtual Bridging
• IEEE 1588v2 Precision Time Protocol
• IEEE 802.3BY 25 Gigabit Ethernet
• IEEE 1149.1
• IEEE 1149.6
• OCP 3.0 compatibility

Benefits of Choosing the Mellanox MCX631102AS-ADAT

• High-speed 25GbE Ethernet connectivity
• Dual-port network flexibility
• Low-latency enterprise networking
• PCIe Gen4 high-bandwidth performance
• Secure Boot firmware protection
• Broad IEEE standards compliance
• Excellent compatibility with modern servers
• Ideal for cloud, storage, virtualization, and HPC
• Reliable enterprise-class networking architecture
• Scalable solution for growing data center environments

Mellanox MCX631102AS-ADAT ConnectX-6 25GbE Adapter

The Mellanox MCX631102AS-ADAT ConnectX-6 Lx EN Card 25GbE SFP28 PCIe 4.0 x8 Secure Boot No Crypto 2 Ports Adapter is designed for organizations that demand reliable Ethernet connectivity, outstanding network efficiency, and enterprise-class performance for modern computing infrastructures. Built on the advanced ConnectX-6 Lx architecture, this dual-port adapter delivers high-speed 25 Gigabit Ethernet connectivity while maintaining exceptional power efficiency and low latency. It is engineered to accelerate workloads across data centers, cloud platforms, virtualization environments, enterprise storage systems, and software-defined networking deployments where network responsiveness directly impacts business operations.

Supporting two SFP28 interfaces, the adapter enables flexible fiber connectivity for high-bandwidth applications while taking advantage of the PCI Express 4.0 x8 interface to maximize throughput between the server and network infrastructure. The Secure Boot capability enhances platform integrity by ensuring trusted firmware execution, while the No Crypto version makes the adapter suitable for deployments requiring compliance with specific regional or organizational encryption regulations.

Enterprise-Class ConnectX-6 Lx Ethernet Architecture

The ConnectX-6 Lx platform represents a significant advancement in Ethernet networking by combining intelligent packet processing, hardware acceleration, and efficient traffic management into a single adapter. The MCX631102AS-ADAT provides a scalable networking solution capable of supporting demanding workloads that require consistent performance under heavy traffic conditions.

Unlike conventional network interface cards, the ConnectX-6 Lx family integrates advanced networking technologies directly into the hardware, reducing CPU utilization and enabling servers to dedicate more processing resources to business applications. This hardware offloading approach improves application responsiveness while increasing overall server efficiency.

Optimized for High-Speed 25GbE Connectivity

The dual 25GbE ports allow organizations to significantly increase network bandwidth compared to traditional 10 Gigabit Ethernet deployments. Higher throughput enables faster application response times, improved storage communication, and accelerated virtual machine migration while supporting increasing user demands across enterprise infrastructures.

With SFP28 connectivity, administrators gain flexibility when selecting optical transceivers or compatible direct attach copper cables, allowing the network to be customized according to distance requirements, switch compatibility, and overall infrastructure design.

Dual-Port SFP28 Design for Flexible Network Deployments

The two independent SFP28 interfaces provide outstanding deployment flexibility for redundant network configurations, storage connectivity, clustered computing, virtualization hosts, and high-availability server environments. Organizations can configure each port independently or combine them for increased bandwidth depending on operational requirements.

Dual-port connectivity also simplifies network redundancy strategies by allowing servers to maintain uninterrupted communication if one physical network path experiences a failure. This level of resiliency is particularly valuable in mission-critical environments where continuous uptime is essential.

Support for Modern Fiber Networking

The SFP28 interface supports modern optical networking technologies that enable clean cable management, long-distance connectivity, and high-performance communication between servers, switches, and storage platforms. Fiber-based networking also minimizes electromagnetic interference while supporting reliable data transmission across enterprise facilities.

Scalable Network Infrastructure

Organizations planning future expansion benefit from the scalability offered by 25GbE technology. As workloads continue to grow, the MCX631102AS-ADAT provides sufficient bandwidth to support increasing virtual machines, containerized applications, cloud-native services, and high-performance storage solutions without requiring immediate hardware replacement.

PCI Express 4.0 x8 Interface Performance

The PCI Express 4.0 x8 host interface delivers significantly higher bandwidth than previous PCIe generations, ensuring that the network adapter can efficiently exchange data with modern server processors. The increased bandwidth eliminates communication bottlenecks while supporting demanding networking operations across multiple applications.

The PCIe Gen4 interface is particularly beneficial for servers running virtualization platforms, database engines, artificial intelligence workloads, software-defined storage, and distributed computing applications where network performance directly influences application efficiency.

Reduced Communication Bottlenecks

By leveraging PCIe 4.0 technology, the adapter maintains fast communication between server memory, processors, storage devices, and external network infrastructure. This efficient data movement minimizes latency while improving application responsiveness during peak workloads.

Designed for Next-Generation Servers

The adapter integrates seamlessly with current enterprise servers that support PCI Express 4.0 expansion slots. Organizations upgrading server infrastructure can fully utilize available bandwidth while preparing their networking environment for future application growth.

Secure Boot Technology for Trusted Operation

Security remains a critical component of modern networking infrastructure. The MCX631102AS-ADAT incorporates Secure Boot technology that validates firmware authenticity during system startup. This verification process helps prevent unauthorized firmware modifications and strengthens the security posture of enterprise servers.

Secure Boot provides administrators with increased confidence that networking hardware operates using verified firmware, reducing potential risks associated with compromised devices while supporting organizational cybersecurity strategies.

Firmware Integrity Protection

Maintaining firmware integrity helps preserve system stability, ensures predictable adapter behavior, and supports long-term infrastructure reliability. Organizations implementing secure infrastructure standards benefit from trusted hardware initialization throughout the server lifecycle.

No Crypto Configuration Advantages

The No Crypto version of the ConnectX-6 Lx adapter is specifically designed for environments where cryptographic functionality is either unnecessary or restricted by organizational policies, procurement guidelines, or regional regulations. This configuration allows businesses to deploy enterprise networking hardware while meeting compliance requirements applicable to their operating environment.

Organizations serving government agencies, educational institutions, research facilities, or export-controlled markets may require hardware configurations that exclude integrated cryptographic capabilities. The MCX631102AS-ADAT fulfills these specialized deployment requirements without sacrificing networking performance.

Virtualization Performance Enhancement

Virtualization environments place significant demands on networking infrastructure because multiple virtual machines share physical hardware resources simultaneously. The ConnectX-6 Lx architecture accelerates virtual networking through advanced hardware offloading technologies that reduce processor overhead while improving virtual machine communication.

This optimization enables virtualization platforms to support larger virtual machine densities while maintaining consistent network responsiveness across hosted workloads.

Improved Virtual Machine Networking

Efficient packet processing allows virtual machines to communicate with lower latency and higher throughput. Administrators benefit from smoother workload migration, improved storage connectivity, and enhanced application responsiveness across clustered virtualization environments.

Cloud Infrastructure Optimization

Cloud service providers and private cloud deployments benefit from the adapter's intelligent networking capabilities, which help maximize hardware utilization while supporting scalable multi-tenant environments that require consistent network performance.

Low-Latency Ethernet Communication

Many enterprise applications depend on predictable network latency to deliver optimal performance. The ConnectX-6 Lx architecture minimizes delays by accelerating packet processing within hardware rather than relying exclusively on server processors.

Lower latency contributes to improved database transactions, faster application delivery, reduced storage access times, and enhanced responsiveness for distributed computing workloads.

Optimized Packet Processing

Hardware acceleration efficiently manages incoming and outgoing network traffic, reducing processing delays while supporting high-speed Ethernet communication under sustained workloads. This intelligent processing capability contributes to consistent application performance even during periods of heavy network utilization.

Data Center Networking Applications

The MCX631102AS-ADAT adapter is suitable for enterprise data centers requiring dependable Ethernet connectivity for servers supporting databases, virtualization clusters, cloud infrastructure, backup environments, storage systems, analytics platforms, and web applications. Its balanced combination of bandwidth, security, scalability, and efficiency makes it appropriate for numerous deployment scenarios.

Enterprise Server Connectivity

Servers equipped with this adapter can efficiently communicate with aggregation switches, storage appliances, hyperconverged infrastructure platforms, and cloud networking equipment while maintaining high levels of performance and operational stability.

Private Cloud Environments

Private cloud deployments benefit from reliable high-speed Ethernet communication that enables rapid workload movement, efficient resource allocation, and scalable infrastructure expansion without introducing unnecessary network limitations.

Storage Network Acceleration

Storage-intensive environments require dependable network adapters capable of transporting large amounts of data between servers and storage arrays. The ConnectX-6 Lx adapter provides consistent throughput for storage applications while reducing communication delays that can impact backup operations, disaster recovery, and enterprise file services.

Organizations deploying software-defined storage platforms can leverage the adapter's advanced Ethernet capabilities to improve storage efficiency and support increasing capacity requirements.

Efficient Data Movement

High-speed Ethernet connectivity allows servers to transfer backup data, replicate storage volumes, synchronize databases, and process large datasets more efficiently than lower-bandwidth networking solutions.

Energy-Efficient Network Design

Power efficiency has become increasingly important in enterprise computing environments. The ConnectX-6 Lx architecture is engineered to deliver exceptional networking performance while maintaining efficient energy consumption. Reduced power usage contributes to lower operational expenses, decreased cooling requirements, and improved overall data center efficiency.

Organizations operating large server clusters can realize measurable infrastructure benefits by deploying high-performance adapters that balance throughput with responsible energy utilization.

Compatibility Across Enterprise Platforms

The MCX631102AS-ADAT is designed for compatibility with a broad range of enterprise operating systems, virtualization platforms, and server hardware. This versatility simplifies deployment across mixed computing environments where multiple operating systems and application platforms coexist.

Flexible Infrastructure Integration

Whether installed in rack-mounted servers, blade servers, virtualization hosts, storage appliances, or cloud infrastructure nodes, the adapter integrates efficiently into existing enterprise networking environments while supporting evolving infrastructure requirements.

Long-Term Deployment Value

Organizations investing in modern networking hardware benefit from the adapter's combination of advanced Ethernet technology, PCIe Gen4 bandwidth, Secure Boot functionality, scalable dual-port connectivity, and enterprise-grade reliability. These characteristics provide long-term value by supporting future infrastructure expansion while maintaining compatibility with contemporary networking standards.

Reliable Networking for Mission-Critical Workloads

Business-critical applications require networking hardware capable of delivering consistent availability under continuous operation. The Mellanox MCX631102AS-ADAT ConnectX-6 Lx EN Card is engineered for enterprise reliability, making it suitable for financial systems, healthcare platforms, manufacturing environments, cloud computing, telecommunications, scientific research, and high-performance enterprise applications where uninterrupted connectivity is essential. Its advanced engineering, intelligent Ethernet processing, secure firmware validation, flexible SFP28 connectivity, PCI Express 4.0 performance, and scalable architecture make it an excellent networking solution for organizations seeking dependable 25GbE infrastructure capable of supporting today's demanding workloads while preparing for tomorrow's expanding network requirements.