MFY9J Dell 100GBE 2 Ports Network Interface Card

Dell MFY9J ConnectX-5 100GbE 2-Port QSFP28 Interface Card

The Dell MFY9J ConnectX-5 Ex EN Network Interface Card is a high-performance enterprise networking solution designed for modern data centers, virtualization platforms, cloud computing, high-performance computing (HPC), and storage environments. Featuring dual 100 Gigabit Ethernet QSFP28 ports, this advanced PCI Express 4.0 x16 network adapter delivers exceptional bandwidth, ultra-low latency, and intelligent hardware acceleration to support mission-critical workloads. Built for reliability and efficiency, the adapter enhances server networking while reducing CPU utilization and improving application responsiveness.

Engineered to support demanding enterprise infrastructures, the Dell MFY9J provides outstanding compatibility with virtualized environments, software-defined networking, cloud deployments, AI workloads, and high-speed storage traffic. Its advanced offloading technologies and comprehensive protocol support make it an ideal solution for organizations seeking scalable, secure, and high-throughput Ethernet connectivity.

General Information

• Manufacturer: Dell
• Part Number: MFY9J
• Product Type: Network Interface Card (NIC)
• Series: ConnectX-5 Ex EN

Technical Information

• PCI Express 4.0 x16 Interface
• PCIe Specification Revision 4.0
• High-bandwidth server connectivity
• Optimized for enterprise-grade servers

Network Ports

• Dual QSFP28 Ports
• 2 × 100 Gigabit Ethernet Interfaces
• Supports high-density network deployments
• Designed for scalable data center connectivity

Performance

• Maximum Data Transfer Rate: 100 Gbps
• Wired Ethernet Connectivity
• Ultra-low latency architecture
• High throughput for bandwidth-intensive applications

Multi-Speed Ethernet Compatibility

• Gigabit Ethernet
• 10 Gigabit Ethernet
• 25 Gigabit Ethernet
• 40 Gigabit Ethernet
• 50 Gigabit Ethernet
• 100 Gigabit Ethernet

Enterprise Transport Protocol Support

• TCP/IP
• UDP/IP
• iSCSI

Industry Standard Networking Support

The Dell MFY9J complies with numerous IEEE networking standards, ensuring compatibility with modern enterprise switches, routers, storage platforms, and virtualization infrastructures.

• 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 802.3BA 40/100 Gigabit Ethernet
• IEEE 802.1AX Link Aggregation
• IEEE 802.1QBB Priority Flow Control
• IEEE 802.1QAZ Enhanced Transmission Selection
• IEEE 802.1QAU Congestion Notification
• IEEE 802.1QBG Edge Virtual Bridging
• IEEE 1588v2 Precision Time Protocol
• IEEE 802.3BJ
• IEEE 802.3BM
• IEEE 802.3BY
• RoHS Environmental Compliance

Intelligent Hardware Offloading

• Large Send Offload (LSO)
• Large Receive Offload (LRO)
• Receive Side Scaling (RSS)
• Transmit Side Scaling (TSS)
• Quality of Service (QoS)
• Jumbo Frame Support
• PXE Boot Support
• UEFI Support
• Auto-Negotiation
• VLAN Support

RDMA Capabilities

• RDMA Support
• RoCE (RDMA over Converged Ethernet)
• Extended Reliable Connected Transport (XRC)
• Dynamically Connected Transport (DCT)
• On Demand Paging (ODP)

Benefits for Virtualized Servers

• Reduced virtualization overhead
• Improved VM networking performance
• Enhanced bandwidth utilization
• Better workload isolation
• Consistent application responsiveness

Ideal Storage Applications

• Storage Area Networks
• Network Attached Storage
• Hyperconverged Infrastructure
• Distributed Storage Clusters
• Software-Defined Storage

Management Features

• Network traffic prioritization
• Bandwidth optimization
• Virtual LAN segmentation
• Enterprise-class traffic management
• Reliable packet delivery

Suitable Deployment Environments

• Enterprise Data Centers
• Cloud Infrastructure
• Artificial Intelligence Platforms
• Machine Learning Clusters
• Virtual Desktop Infrastructure
• Big Data Analytics
• Financial Computing
• Media Production Networks
• Research Laboratories
• Government Computing Environments

Dell MFY9J 100GbE 2-Port QSFP28 PCIe Interface Card 

The Dell MFY9J ConnectX-5 EX EN 100GbE 2-Port QSFP28 PCIe 4.0 x16 RoHS R6 Network Interface Card represents a high-performance networking solution designed for modern enterprise data centers, hyperscale cloud infrastructures, high-frequency trading environments, and advanced AI/ML computing clusters. Engineered to deliver ultra-low latency, maximum throughput, and advanced offload capabilities, this dual-port 100 Gigabit Ethernet adapter is built on cutting-edge architecture developed through its networking division, originally associated with Mellanox technologies.

Manufactured and distributed under enterprise OEM integration this adapter is designed for seamless compatibility with Dell PowerEdge servers and high-density rack environments, ensuring stability, scalability, and long-term operational efficiency in mission-critical workloads.

Advanced Architecture of ConnectX-5 EX EN Platform

Next-Generation Network Interface Design

The ConnectX-5 EX EN architecture is built to support extreme data throughput demands, leveraging PCIe 4.0 x16 bus interface technology to maximize bandwidth utilization between server CPU and network fabric. This ensures minimal bottlenecks in high-volume data environments where millions of packets per second must be processed efficiently without degradation in performance.

The architecture is optimized for both traditional Ethernet workloads and advanced cloud-native applications, enabling simultaneous handling of storage traffic, virtualization overlays, and compute-intensive networking tasks within a single adapter.

Dual-Port QSFP28 100GbE Connectivity

The dual QSFP28 ports integrated into this network interface card support 100GbE connectivity per port, allowing aggregated throughput of up to 200GbE in compatible configurations. This dual-port design enhances redundancy, load balancing, and link aggregation capabilities for enterprise-grade network deployments.

Each QSFP28 interface supports a wide range of optical and DAC transceivers, providing flexibility in deployment scenarios from short-reach intra-rack connections to long-distance inter-switch fabric connectivity.

High-Speed Optical Flexibility

The QSFP28 interface supports multiple optical formats including SR4, LR4, and DAC direct attach copper solutions, enabling adaptable deployment across diverse data center topologies. This flexibility allows network engineers to optimize infrastructure cost and performance simultaneously.

PCIe 4.0 x16 Interface Performance Advantages

Maximizing Data Throughput Between CPU and NIC

The PCI Express 4.0 x16 interface provides double the bandwidth of PCIe 3.0, significantly enhancing data transfer rates between server CPU and network interface card. This improvement is critical for modern workloads such as real-time analytics, virtualization, container orchestration, and AI model training.

With PCIe 4.0, the Dell MFY9J adapter ensures that network traffic is processed without congestion at the bus level, enabling consistent and predictable performance even under peak load conditions.

Low-Latency Data Handling

The reduced latency of PCIe 4.0 architecture is especially beneficial in high-frequency trading systems and distributed computing environments where microseconds can impact transaction outcomes or computation efficiency.

Enterprise-Grade RoHS R6 Compliance and Build Quality

Environmentally Responsible Manufacturing

The RoHS R6 compliance ensures that the Dell MFY9J ConnectX-5 EX EN NIC adheres to strict environmental standards, restricting hazardous substances and promoting sustainable manufacturing practices. This compliance is essential for global enterprise deployments where environmental regulations must be strictly followed.

Durability and Thermal Efficiency

Engineered for continuous 24/7 operation, the card features advanced thermal management design, ensuring stable performance even under sustained high-throughput workloads. The passive and active cooling compatibility allows integration into various server chassis configurations.

High-Performance Networking Use Cases

Cloud Data Center Infrastructure

In cloud environments, this network interface card enables high-density virtual machine traffic distribution, container networking, and overlay network acceleration. It is particularly effective in large-scale cloud platforms requiring consistent east-west traffic optimization.

Virtualization and Software-Defined Networking Capabilities

SR-IOV and Virtual Function Acceleration

Single Root I/O Virtualization (SR-IOV) support enables the Dell MFY9J NIC to allocate multiple virtual functions directly to virtual machines, reducing overhead and improving network efficiency in virtualized environments.

Offload Engine Optimization

The integrated offload engines reduce CPU utilization by handling checksum calculations, segmentation, and packet processing at the hardware level. This allows host CPUs to focus on application workloads rather than network processing tasks.

Overlay Network Acceleration

Support for VXLAN, GRE, and NVGRE offloading enables efficient overlay network processing in software-defined data centers, reducing latency and improving throughput in virtualized network infrastructures.

Scalability in Modern Enterprise Data Centers

Horizontal Scaling Support

The dual-port design of the Dell MFY9J adapter supports scalable network architectures where multiple servers are interconnected to form high-throughput compute clusters. This is essential for distributed computing workloads.

Traffic Distribution Efficiency

Advanced traffic distribution algorithms ensure optimal utilization of available bandwidth across both ports, minimizing congestion and improving application responsiveness.

Integration with Dell Server Ecosystem

Optimized for PowerEdge Servers

The Dell MFY9J ConnectX-5 EX EN NIC is fully optimized for integration into Dell PowerEdge server platforms, ensuring BIOS-level compatibility, firmware synchronization, and management integration through Dell OpenManage systems.

This tight integration reduces deployment complexity and ensures consistent performance tuning across enterprise infrastructure.

Firmware and Driver Ecosystem Support

The adapter supports a wide range of enterprise drivers across Linux, Windows Server, and virtualization hypervisors such as VMware ESXi and Microsoft Hyper-V, ensuring broad compatibility across IT environments.

Advanced Security Features

Hardware-Level Security Acceleration

Security offload capabilities include inline encryption and decryption acceleration, reducing CPU overhead while maintaining high-speed encrypted communication channels.

Secure Boot and Firmware Integrity

The NIC supports secure firmware validation mechanisms to ensure that only authenticated firmware is executed, protecting against malicious modifications and unauthorized access.

Network Isolation Features

Virtualization-aware isolation mechanisms ensure secure separation of network traffic between tenants in multi-tenant cloud environments, enhancing data privacy and compliance.