MCX556A-ECAT Mellanox ConnectX-5 VPI Network Adapter, PCI Express 3.0 x16, Gb Ethernet, 10 Gb Ethernet, 40 Gb Ethernet Green/Silver

Mellanox MCX556A-ECAT ConnectX-5 VPI Adapter Card

The Mellanox MCX556A-ECAT ConnectX-5 VPI Adapter Card is a high-performance networking solution engineered for enterprise data centers, cloud infrastructures, artificial intelligence clusters, high-performance computing environments, storage networks, and virtualization platforms. Designed with advanced networking technologies, this adapter card delivers exceptional throughput, extremely low latency, and intelligent hardware acceleration to satisfy demanding workloads that require fast and reliable communication between servers and storage systems. Supporting both EDR InfiniBand at 100Gb/s and 100 Gigabit Ethernet through VPI technology, the adapter provides deployment flexibility while helping organizations simplify network upgrades and infrastructure expansion.

Built with a PCI Express 3.0 x16 interface, the MCX556A-ECAT maximizes host connectivity while ensuring efficient communication between modern processors and high-speed networking resources. The dual-port QSFP28 configuration enables redundant connectivity, improved bandwidth aggregation, and scalable network architecture suitable for mission-critical applications. Its RoHS R6 compliance and full-height bracket design make the adapter suitable for enterprise servers that require environmentally compliant hardware with dependable installation compatibility.

Advanced ConnectX-5 VPI Networking Technology

Flexible InfiniBand and Ethernet Connectivity

The ConnectX-5 VPI architecture enables organizations to deploy either InfiniBand or Ethernet networking using the same adapter hardware. This Virtual Protocol Interconnect capability offers exceptional flexibility for businesses planning infrastructure upgrades or operating hybrid environments where different networking standards coexist. Instead of maintaining separate adapters for various network protocols, IT administrators can standardize server deployments while choosing the protocol that best supports each workload.

This versatility significantly reduces hardware complexity while simplifying inventory management, deployment planning, and long-term scalability. Organizations investing in digital transformation benefit from the ability to migrate between networking technologies without replacing server adapters.

Purpose-Built for High-Speed Data Centers

Modern enterprise applications continuously generate enormous volumes of data requiring immediate processing and rapid communication between compute nodes. The Mellanox MCX556A-ECAT addresses these demands by providing a high-bandwidth network interface capable of supporting large-scale virtualization, distributed databases, cloud-native applications, container orchestration, and machine learning clusters.

Its architecture minimizes communication bottlenecks that often limit application performance, allowing servers to exchange data more efficiently across network fabrics while maintaining consistent response times under heavy workloads.

Dual-Port QSFP28 Architecture

Enhanced Bandwidth Availability

The dual-port QSFP28 configuration provides organizations with increased networking flexibility by supporting multiple high-speed links from a single adapter. Each port can operate independently, allowing network administrators to implement redundancy, traffic isolation, or bandwidth aggregation depending on infrastructure requirements.

Dual-port connectivity supports business continuity initiatives by enabling failover configurations that maintain uninterrupted communication if one network path becomes unavailable. This feature is especially valuable in enterprise environments where downtime directly affects productivity and revenue.

Support for Scalable Infrastructure

As organizations continue expanding compute resources, networking infrastructure must scale accordingly. The MCX556A-ECAT adapter is designed to accommodate growing workloads without introducing unnecessary complexity. Dual-port connectivity simplifies expansion strategies by allowing additional network paths while maintaining centralized server management.

100GbE Ethernet Performance

Optimized for Enterprise Ethernet Networks

The adapter supports high-speed 100 Gigabit Ethernet connectivity that enables servers to process enormous amounts of application traffic with minimal delay. Enterprise workloads involving virtualization, cloud computing, video streaming, storage replication, and distributed analytics benefit from consistent high-bandwidth communication across network segments.

Large data transfers complete more efficiently, improving application responsiveness and reducing backup windows while supporting business-critical operations that require dependable network performance.

Reduced Network Congestion

Higher bandwidth significantly decreases congestion in heavily utilized environments. Applications requiring simultaneous access to storage arrays, databases, and compute clusters experience fewer communication delays because additional network capacity accommodates larger traffic volumes without creating bottlenecks.

EDR InfiniBand Capabilities

Exceptional Low-Latency Communication

EDR InfiniBand technology delivers outstanding performance for latency-sensitive applications such as scientific simulations, financial modeling, artificial intelligence training, engineering analysis, and large-scale research computing. The MCX556A-ECAT enables rapid communication between cluster nodes, allowing applications to exchange data with minimal processing delay.

Low-latency networking improves synchronization across distributed computing environments while maximizing processor utilization during parallel workloads.

Accelerating HPC Applications

High-performance computing environments rely heavily on efficient inter-node communication. ConnectX-5 technology provides the throughput and latency characteristics required for computational tasks involving thousands of processors working simultaneously. Faster communication allows workloads to complete sooner while increasing overall cluster efficiency.

PCI Express 3.0 x16 Host Interface

High-Speed Host Communication

The PCI Express 3.0 x16 interface offers substantial bandwidth between the server motherboard and networking subsystem. This high-speed connection ensures network traffic flows efficiently without creating internal hardware bottlenecks that could limit adapter performance.

Servers equipped with multiple processors and high-performance storage systems benefit from balanced data movement between internal components and external networks.

Compatibility with Enterprise Servers

The adapter integrates seamlessly into many enterprise-grade servers supporting PCIe 3.0 x16 expansion slots. Its standard interface simplifies deployment across heterogeneous server environments while supporting consistent networking capabilities throughout the infrastructure.

Hardware Acceleration Features

Remote Direct Memory Access

RDMA technology enables applications to transfer data directly between server memory without extensive CPU involvement. This dramatically reduces processor overhead while improving throughput and lowering latency. Applications handling large datasets experience faster communication with improved overall efficiency.

CPU Offloading Technologies

The MCX556A-ECAT incorporates intelligent hardware acceleration that shifts networking tasks away from the host processor. Offloading checksum calculations, packet processing, and protocol handling frees CPU resources for application workloads instead of network management operations.

Improved Application Efficiency

Hardware acceleration contributes to lower operating costs by maximizing processor utilization. Organizations can support additional virtual machines, containers, or applications without requiring proportionally larger CPU resources.

Virtualization Performance

Optimized for Virtual Machines

Virtualized infrastructures require network adapters capable of efficiently handling traffic from numerous virtual machines sharing the same physical server. The ConnectX-5 architecture provides hardware virtualization support that maintains consistent network performance even during periods of intensive workload consolidation.

Cloud Computing Integration

Private cloud, hybrid cloud, and public cloud deployments depend upon reliable networking capable of supporting dynamic resource allocation. The MCX556A-ECAT enhances cloud infrastructure by delivering predictable bandwidth and efficient traffic handling across virtualized environments.

Storage Networking Advantages

Accelerating Storage Access

Modern storage architectures increasingly depend upon high-speed networking for communication between application servers and storage arrays. The adapter delivers the bandwidth necessary for fast storage access while minimizing latency associated with large file transfers and database transactions.

Efficient Data Protection

Backup operations, disaster recovery replication, and business continuity planning benefit from faster network performance. Large backup datasets can move between storage systems more quickly, reducing maintenance windows while improving recovery readiness.

Security and Enterprise Reliability

Reliable Network Operations

Enterprise infrastructures demand consistent networking performance under continuous operation. The Mellanox MCX556A-ECAT is designed for round-the-clock availability, supporting mission-critical applications requiring dependable communication with minimal interruption.

Data Integrity

Advanced error handling mechanisms help maintain data accuracy during transmission, reducing packet loss while supporting reliable communication across high-speed network links.

RoHS R6 Compliance

Environmentally Responsible Manufacturing

The adapter complies with RoHS R6 environmental regulations that restrict hazardous substances in electronic equipment. Organizations pursuing sustainable procurement strategies benefit from selecting networking hardware designed to meet internationally recognized environmental standards.

Enterprise Procurement Benefits

Many government agencies, educational institutions, healthcare organizations, and multinational enterprises require environmentally compliant IT equipment. RoHS certification simplifies purchasing decisions while supporting organizational sustainability initiatives.

Full-Height Bracket Design

Enterprise Rack Server Compatibility

The included full-height bracket supports installation in a broad range of rack-mounted enterprise servers commonly deployed throughout modern data centers. Secure mechanical installation ensures stable operation throughout the lifecycle of the hardware.

Simplified Deployment

Standard bracket dimensions reduce installation complexity while allowing IT teams to deploy networking upgrades quickly during maintenance windows without extensive hardware modification.

Network Scalability

Supporting Infrastructure Growth

Businesses continually expand computing resources as application demands increase. The MCX556A-ECAT provides networking capabilities capable of supporting future infrastructure growth while maintaining consistent performance across evolving workloads.

Investment Protection

Deploying high-performance networking hardware enables organizations to extend server usefulness by supporting next-generation applications requiring greater bandwidth and lower latency than previous networking technologies.

Ideal Enterprise Applications

Cloud Infrastructure

Cloud service providers require reliable networking capable of supporting thousands of concurrent virtual machines and containerized workloads. The ConnectX-5 adapter delivers the bandwidth necessary for scalable cloud environments while maintaining operational efficiency.

High-Performance Computing

Scientific research, engineering simulations, weather forecasting, pharmaceutical development, and computational modeling depend upon extremely fast communication between compute nodes. EDR InfiniBand capabilities significantly enhance cluster performance for these demanding environments.

Enterprise Virtualization

Organizations consolidating workloads onto virtualization platforms benefit from efficient hardware acceleration, reduced CPU overhead, and predictable networking performance across multiple virtual machines.

Database Platforms

Mission-critical databases require low-latency networking for transaction processing, replication, clustering, and backup operations. ConnectX-5 technology helps maintain consistent database responsiveness by reducing communication delays between interconnected systems.

Performance Benefits for Modern IT Infrastructure

Higher Throughput

The combination of dual-port QSFP28 connectivity, PCIe 3.0 x16 bandwidth, and advanced hardware acceleration enables exceptional throughput suitable for enterprise-scale computing environments handling continuously increasing network traffic.

Lower Latency

Low-latency communication improves application responsiveness across cloud platforms, storage networks, virtualization clusters, artificial intelligence workloads, and distributed enterprise applications where immediate data exchange is essential.

Long-Term Enterprise Value

The Mellanox MCX556A-ECAT ConnectX-5 VPI Adapter Card represents a future-ready networking solution combining EDR InfiniBand, 100GbE Ethernet, dual-port QSFP28 connectivity, PCI Express 3.0 x16 performance, intelligent hardware acceleration, virtualization optimization, RDMA capabilities, RoHS R6 compliance, and dependable enterprise reliability. Its balanced combination of scalability, efficiency, bandwidth, and protocol flexibility makes it an excellent networking adapter for organizations building high-performance data centers capable of supporting today's demanding workloads while preparing for tomorrow's rapidly evolving computing requirements.