MCX621102AC-ADAT Mellanox Connectx-6 Dx En, 25gbe, Dual-port Network Adapter Card Sfp28, Pcie 4.0 X8.

Mellanox MCX621102AC-ADAT 25GbE Dual-Port Adapter Outline

The Mellanox MCX621102AC-ADAT ConnectX-6 Dx EN 25GbE Dual-Port Network Adapter Card is a high-performance enterprise networking solution designed to deliver ultra-fast connectivity, exceptional bandwidth, and advanced hardware acceleration for modern data centers. Built with PCI Express 4.0 technology and dual 25 Gigabit Ethernet ports, this network interface card (NIC) enables organizations to maximize application performance while minimizing latency. It is an excellent choice for cloud computing, virtualization, enterprise networking, AI infrastructure, machine learning environments, storage networks, and high-performance computing (HPC).

Featuring dual SFP28 interfaces, the adapter supports both optical fiber and Direct Attach Copper (DAC) cables, offering deployment flexibility for various networking environments. The ConnectX-6 Dx architecture integrates advanced security, intelligent packet processing, hardware offloading, and virtualization technologies that improve application responsiveness while reducing CPU utilization.

General Information of Mellanox MCX621102AC-ADAT

• Manufacturer: Mellanox
• Part Number: MCX621102AC-ADAT
• Product Type: Dual-Port Ethernet Network Adapter Card
• Series: ConnectX-6 Dx EN
• Interface: PCI Express 4.0 x8
• Port Configuration: Dual SFP28 Ports

Key Features of the ConnectX-6 Dx Network Adapter

Dual 25 Gigabit Ethernet Connectivity

• Dual 25GbE network ports
• Supports 1GbE, 10GbE, and 25GbE speeds
• High bandwidth for enterprise workloads
• Excellent scalability for expanding data centers

PCI Express 4.0 x8 Host Interface

• PCI Express 4.0 x8 interface
• Backward compatible with PCIe Gen3
• Higher throughput with reduced bottlenecks
• Optimized server communication

Flexible SFP28 Connectivity

• Supports optical fiber modules
• Compatible with DAC copper cables
• Reliable long-distance connectivity
• Ideal for enterprise and cloud networking

Technical Specifications

Network Performance

• Dual-port 25 Gigabit Ethernet
• Supports 1GbE, 10GbE, and 25GbE
• Low-latency packet processing
• High-performance Ethernet controller

Interface Specifications

• Host Interface: PCI Express 4.0 x8
• Port Type: Dual SFP28
• Media Support: Fiber Optic and Copper DAC
• Backward Compatibility: PCIe Gen3

Physical Characteristics

• Full-height bracket included
• Enterprise-grade construction
• Designed for rack-mounted servers
• Professional cooling design for continuous operation

Advanced Hardware Security

Crypto-Enabled Architecture

• Hardware IPsec acceleration
• TLS encryption support
• Inline cryptographic processing
• Enhanced network security

Secure Boot Technology

• Firmware authentication
• Secure hardware initialization
• Protection against unauthorized firmware changes
• Enterprise-grade security features

Advanced Network Acceleration Technologies

RDMA over Converged Ethernet (RoCE)

• Ultra-low latency communication
• Reduced CPU consumption
• High-speed memory transfers
• Improved cluster performance

SR-IOV Virtualization Support

• High-density virtual machine deployment
• Lower virtualization overhead
• Enhanced cloud infrastructure efficiency
• Improved VM networking performance

DPDK Optimization

• Fast packet forwarding
• Optimized network applications
• Reduced latency
• Higher packet processing efficiency

NVMe over Fabrics (NVMe-oF)

• Accelerated storage networking
• Lower storage latency
• Faster application access
• Enterprise storage optimization

Overlay Network Offloading

• VXLAN offload support
• Geneve encapsulation acceleration
• Reduced CPU utilization
• Efficient cloud networking

High-Performance Computing (HPC)

• High-speed cluster communication
• Low-latency networking
• Reliable data transmission
• Optimized computational workloads

High-Frequency Trading (HFT)

• Minimal network delay
• Predictable packet delivery
• Fast transaction processing
• Optimized trading infrastructure

Compatibility

Operating System Support

• Microsoft Windows Server
• Linux Enterprise distributions
• VMware ESXi
• Virtualized cloud environments

Server Compatibility

• Enterprise rack servers
• Cloud infrastructure platforms
• Storage servers
• High-performance computing systems

Benefits of the Mellanox MCX621102AC-ADAT

Performance Advantages

• Up to 50Gbps aggregate bandwidth
• Extremely low network latency
• PCIe Gen4 high-speed connectivity
• Advanced hardware offloading
• Reduced CPU utilization

Security Benefits

• Hardware encryption engines
• IPsec acceleration
• TLS offloading
• Secure Boot protection
• Enhanced firmware security

Business Advantages

• Higher infrastructure efficiency
• Reduced operational costs
• Excellent scalability
• Reliable enterprise networking
• Future-ready network architecture

Mellanox MCX621102AC-ADAT ConnectX-6 2-Port Adapter Card

The Mellanox MCX621102AC-ADAT ConnectX-6 Dx EN 25GbE Dual-Port Network Adapter Card SFP28 PCIe 4.0 x8 is engineered to deliver exceptional networking performance for enterprise data centers, cloud infrastructure, virtualization platforms, storage networks, and high-performance computing environments. As modern organizations continue to adopt bandwidth-intensive applications, artificial intelligence workloads, software-defined infrastructure, and large-scale virtualization, reliable network adapters capable of handling growing traffic demands become essential. This advanced Ethernet adapter provides the speed, scalability, and intelligent acceleration required to meet current and future networking challenges while maintaining low latency and outstanding efficiency.

Designed with PCI Express 4.0 x8 connectivity, the adapter maximizes data throughput between the server and network infrastructure. Its dual-port SFP28 interfaces provide flexible deployment options, allowing organizations to connect multiple switches, create redundant network paths, or increase available bandwidth through link aggregation. Whether deployed in enterprise servers, cloud computing clusters, database servers, virtualization hosts, or storage appliances, this network adapter consistently delivers reliable performance under demanding workloads.

Designed for Modern Enterprise Networking

Today's enterprise infrastructure requires network hardware capable of supporting virtualization, cloud-native applications, distributed computing, and real-time analytics. The Mellanox MCX621102AC-ADAT addresses these challenges by combining advanced hardware architecture with intelligent packet processing capabilities. Organizations deploying high-density servers require network adapters that can efficiently process millions of packets while minimizing CPU overhead and ensuring predictable latency.

The ConnectX-6 Dx family has been developed to support evolving enterprise networking standards. Its advanced hardware offloading technologies improve server efficiency by allowing the adapter to handle numerous networking tasks that would otherwise consume valuable processor resources. This optimization enables servers to dedicate more CPU cycles to business applications instead of network management.

High-Speed 25 Gigabit Ethernet Connectivity

One of the defining advantages of the Mellanox MCX621102AC-ADAT is its support for dual 25 Gigabit Ethernet ports. Compared to traditional 10GbE networking, 25GbE offers significantly greater bandwidth while maintaining an efficient cost-to-performance ratio. Organizations upgrading their infrastructure can improve application responsiveness, reduce network congestion, and support growing user demands without completely redesigning existing architectures.

The SFP28 interfaces allow administrators to deploy either optical transceivers or Direct Attach Copper cables depending on network distance and infrastructure requirements. This flexibility supports short-range server rack deployments as well as long-distance fiber connectivity throughout enterprise campuses and data centers.

Dual-Port Architecture for Enhanced Availability

The inclusion of two independent SFP28 network ports significantly increases deployment flexibility. Each port can operate independently, enabling redundant network paths that improve system availability. Organizations implementing mission-critical applications benefit from continuous network connectivity even if one network path becomes unavailable.

Dual-port configurations also support bandwidth aggregation technologies, allowing administrators to combine both interfaces into a higher-capacity logical connection. This approach improves throughput while simplifying traffic distribution across the available links.

Support for Redundant Network Designs

High-availability environments frequently require multiple network paths to eliminate single points of failure. The dual-port architecture enables servers to connect to separate switches, ensuring uninterrupted communications during switch maintenance or unexpected hardware failures. This capability is particularly valuable for financial institutions, healthcare organizations, cloud service providers, and enterprise databases where downtime can result in significant operational impact.

PCI Express 4.0 x8 Performance

The PCI Express 4.0 x8 interface delivers the bandwidth necessary to support dual 25GbE connections without creating internal communication bottlenecks. PCIe Gen4 doubles the transfer rate compared to the previous generation, ensuring that network traffic moves efficiently between server memory and network interfaces.

Servers equipped with PCIe 4.0 technology gain substantial advantages when handling virtualization workloads, large-scale storage traffic, machine learning datasets, and distributed applications. The increased bus bandwidth allows network-intensive applications to fully utilize available Ethernet capacity while maintaining low latency.

Improved Server Efficiency

Efficient communication between the processor, memory subsystem, and network adapter contributes to improved application performance. The PCIe 4.0 architecture minimizes bottlenecks that may occur when multiple virtual machines, containers, storage operations, and network services simultaneously generate heavy traffic. This balanced design helps organizations maximize the return on investment from modern server platforms.

Optimized for Virtualization Environments

Virtualization continues to transform enterprise computing by enabling multiple operating systems and applications to run on a single physical server. The Mellanox MCX621102AC-ADAT is specifically designed to optimize networking performance within virtualized infrastructures.

Its hardware acceleration capabilities reduce virtualization overhead while maintaining consistent network performance across numerous virtual machines. Hypervisors benefit from intelligent packet processing, efficient resource allocation, and improved network isolation between workloads.

Support for Large Virtual Machine Deployments

As organizations consolidate workloads onto fewer physical servers, each server must process significantly more network traffic. The ConnectX-6 Dx architecture efficiently supports dense virtual machine deployments by maintaining high throughput and predictable response times. This enables IT departments to increase server utilization without compromising application performance.

Container and Kubernetes Integration

Modern container orchestration platforms require networking hardware capable of handling rapidly changing network configurations and high volumes of east-west traffic. The adapter supports these evolving requirements by providing fast packet forwarding, intelligent workload distribution, and scalable connectivity for containerized applications running in Kubernetes and similar environments.

Cloud Computing Infrastructure

Public cloud providers, private cloud environments, and hybrid cloud architectures rely heavily on high-performance Ethernet adapters to connect compute nodes, storage platforms, and network services. The Mellanox MCX621102AC-ADAT delivers the bandwidth necessary to support cloud-native workloads while maintaining efficient utilization of server resources.

Cloud infrastructure often involves thousands of simultaneous client connections, distributed applications, and dynamic workload migration. The advanced capabilities of the ConnectX-6 Dx platform ensure stable performance across highly scalable cloud deployments.

Efficient Multi-Tenant Networking

Cloud providers frequently host applications belonging to multiple customers on shared hardware platforms. The adapter helps maintain efficient network isolation while delivering consistent throughput and predictable latency to every tenant. Hardware acceleration reduces processing overhead, allowing cloud servers to support greater user density.

Storage Networking Performance

Storage traffic has become increasingly demanding as organizations adopt NVMe storage arrays, distributed file systems, backup solutions, and software-defined storage platforms. The dual 25GbE interfaces provide the bandwidth necessary to move large datasets efficiently between storage devices and application servers.

Fast storage networking reduces backup windows, accelerates database replication, improves disaster recovery operations, and enhances the responsiveness of enterprise applications that rely on shared storage resources.

Support for High-Speed Data Transfers

Large databases, multimedia content libraries, scientific research datasets, and enterprise analytics platforms require rapid movement of information between servers and storage systems. The adapter enables consistent high-speed transfers while minimizing latency during simultaneous read and write operations.

Advanced Hardware Acceleration Technologies

The ConnectX-6 Dx architecture incorporates intelligent hardware acceleration features that significantly improve networking efficiency. Rather than relying solely on the server processor to manage every networking function, many repetitive operations are handled directly by the adapter.

This hardware offloading reduces processor utilization, decreases application latency, and improves overall server performance. As workload intensity increases, the benefits of hardware acceleration become increasingly valuable because CPU resources remain available for business applications instead of networking tasks.

Reduced CPU Utilization

Server processors can dedicate more computing resources to applications when networking operations are efficiently offloaded to specialized hardware. This leads to improved application responsiveness, increased virtual machine density, and better overall infrastructure efficiency across enterprise environments.

Consistent Low-Latency Communication

Latency-sensitive applications such as financial trading platforms, real-time analytics, machine learning clusters, and online transaction processing systems require predictable network response times. The advanced packet processing architecture helps maintain consistently low latency even during periods of heavy network utilization.

Scalability for Growing Infrastructure

Organizations continuously expand their networking infrastructure as business requirements evolve. The Mellanox MCX621102AC-ADAT provides scalable networking capabilities that accommodate increasing bandwidth demands without requiring immediate replacement. Businesses can confidently deploy the adapter knowing it supports future growth while remaining compatible with modern enterprise networking standards.

Whether supporting hundreds of users or thousands of virtual workloads, the adapter provides a stable networking foundation capable of adapting to changing operational requirements.

Flexible Network Expansion

The dual SFP28 interfaces allow administrators to select networking media appropriate for current infrastructure while preserving future upgrade options. Optical modules enable long-distance connectivity between buildings or data center rows, while Direct Attach Copper cables provide economical high-speed connections within server racks.

Security and Enterprise Reliability

Enterprise networking requires more than raw performance. Security, reliability, and operational stability remain equally important considerations when selecting network interface hardware. The ConnectX-6 Dx platform incorporates advanced technologies designed to improve secure communications while maintaining dependable long-term operation.

The adapter is engineered for continuous operation in demanding enterprise environments where servers remain active around the clock. High-quality components and proven engineering contribute to dependable operation under sustained workloads.

Reliable Continuous Operation

Data centers require hardware capable of maintaining stable performance throughout extended operational periods. The Mellanox MCX621102AC-ADAT is designed to support continuous enterprise workloads including virtualization clusters, storage networks, cloud infrastructure, artificial intelligence platforms, and mission-critical business applications.

Ideal Deployment Scenarios

Enterprise Data Centers

Enterprise data centers benefit from the adapter's combination of high bandwidth, low latency, and efficient hardware acceleration. Application servers, virtualization hosts, storage appliances, and management platforms all gain improved network performance through dual 25GbE connectivity.

High-Performance Computing Clusters

Scientific research organizations, engineering firms, universities, and simulation environments frequently process massive datasets requiring rapid communication between compute nodes. The ConnectX-6 Dx adapter provides reliable high-speed Ethernet connectivity suitable for demanding computational workloads.

Database Servers

Modern relational databases, distributed databases, and in-memory database platforms depend on fast network connectivity for replication, clustering, backup, and client communication. The Mellanox MCX621102AC-ADAT provides the networking performance required to maintain responsive database operations while supporting increasing transaction volumes.

Long-Term Infrastructure Investment

Organizations investing in next-generation networking hardware seek products that deliver lasting value through exceptional performance, broad compatibility, and future-ready architecture. The Mellanox MCX621102AC-ADAT ConnectX-6 Dx EN 25GbE Dual-Port Network Adapter Card SFP28 PCIe 4.0 x8 fulfills these requirements by combining advanced Ethernet technology with enterprise-class reliability, intelligent hardware acceleration, scalable bandwidth, and flexible deployment options. Its support for dual 25GbE networking, PCIe Gen4 connectivity, virtualization optimization, cloud infrastructure, storage networking, artificial intelligence workloads, and high-performance enterprise applications makes it an outstanding solution for organizations seeking dependable, high-speed network connectivity across modern data center environments.