D4W5M Dell ConnectX-4 Lx 2-Ports SFP28 25GbE PCI Express Adapter

Dell D4W5M ConnectX-4 Lx Dual-Port 25GbE PCIe Adapter

Product Overview

The Dell D4W5M ConnectX-4 Lx 2-Port SFP28 25GbE PCI Express Low Profile Network Adapter is a high-performance networking solution designed for modern data centers, virtualization environments, and enterprise servers. Built to deliver ultra-fast 25 Gigabit Ethernet connectivity, this advanced PCIe adapter ensures reliable throughput, low latency, and efficient workload acceleration.

General Information

Manufacturer Details

• Brand: Dell
• Manufacturer Part Number (MPN): D4W5M
• Product Category: Network Interface Card (NIC)

Form Factor & Card Design

• Card Height: Low-profile

Network & Port Configuration

Ethernet Ports

• Total Ports: 2
• Port Type: SFP28
• Speed: 25 Gigabit Ethernet (25GbE)

Expansion Slot Type

• SFP28 expansion slots for high-speed connectivity

Media & Connectivity Standard

• Media Type: Optical Fiber

Performance Specifications

• Bandwidth: Up to 50GbE aggregate
• Latency: Ultra-low latency with RDMA support
• Offloading: TCP, UDP, RoCE, and more

Key Highlights of Dell D4W5M Network Adapter

• Dual port 25GbE SFP28 connectivity
• PCI Express 3.0 host interface for high bandwidth
• Low-profile form factor for space-saving server deployments
• Optimized for virtualization and cloud infrastructures
• Supports high-speed optical fiber networking

Ideal Use Cases

• Enterprise data centers
• Cloud computing platforms
• Virtualized server environments
• High-performance computing (HPC)
• Software-defined storage solutions

Dell D4W5M ConnectX-4 Lx 2-Ports SFP28 Adapter Outline

The Dell D4W5M ConnectX-4 Lx 2-Ports SFP28 25GbE PCI Express Low Profile Network Adapter is a high-performance solution designed for enterprise networking environments that demand speed, scalability, and reliability. Built on Mellanox’s ConnectX-4 Lx architecture, this adapter delivers advanced networking capabilities for data centers, cloud infrastructures, and high-performance computing clusters. With dual SFP28 ports supporting 25GbE, it ensures optimal throughput, reduced latency, and efficient resource utilization.

Key Features of the Dell D4W5M ConnectX-4 Lx Adapter

Dual SFP28 Ports for 25GbE Connectivity

The adapter comes equipped with two SFP28 ports, each capable of delivering 25GbE bandwidth. This dual-port configuration provides redundancy, load balancing, and enhanced scalability for demanding workloads. It supports advanced networking protocols and ensures seamless integration with modern data center infrastructures.

PCI Express Low Profile Design

Designed with a low-profile PCI Express form factor, the Dell D4W5M ConnectX-4 Lx adapter fits into compact server environments without compromising performance. This design makes it ideal for rack-mounted servers and blade systems where space efficiency is critical.

Advanced Offloading Capabilities

The adapter supports hardware offloads for protocols such as TCP, UDP, and RDMA over Converged Ethernet (RoCE). These offloading features reduce CPU utilization, improve application performance, and enhance overall system efficiency.

Performance Benefits

High Bandwidth and Low Latency

With 25GbE connectivity, the Dell D4W5M ConnectX-4 Lx adapter ensures high throughput and minimal latency. This makes it suitable for applications such as virtualization, cloud computing, and big data analytics, where performance is paramount.

Scalability for Modern Data Centers

The adapter’s dual-port design allows organizations to scale their networking infrastructure efficiently. It supports link aggregation and redundancy, ensuring continuous availability and improved fault tolerance.

Enhanced Virtualization Support

Virtualized environments benefit from the adapter’s SR-IOV (Single Root I/O Virtualization) support, which enables multiple virtual machines to share a single physical adapter without performance degradation. This feature is essential for cloud service providers and enterprises running large-scale virtualized workloads.

Compatibility and Integration

Operating System Support

The Dell D4W5M ConnectX-4 Lx adapter is compatible with major operating systems, including Windows Server, Linux distributions, and VMware ESXi. This broad compatibility ensures seamless integration into diverse IT environments.

Server and Storage Integration

The adapter integrates easily with Dell PowerEdge servers and other enterprise-grade hardware. It also supports storage networking protocols, making it suitable for SAN and NAS environments where high-speed connectivity is required.

Use Cases

High-Performance Computing (HPC)

In HPC environments, the adapter’s low latency and high bandwidth are critical for parallel computing workloads. It supports RDMA, enabling direct memory access between servers and reducing communication overhead.

Cloud and Virtualization

Cloud service providers benefit from the adapter’s scalability and virtualization support. It enables efficient resource allocation, reduces bottlenecks, and ensures consistent performance across virtualized workloads.

Enterprise Data Centers

For enterprise data centers, the Dell D4W5M ConnectX-4 Lx adapter provides reliable connectivity for mission-critical applications. Its dual-port design ensures redundancy, while advanced offloading features optimize performance.

Advantages of Choosing Dell D4W5M ConnectX-4 Lx

Reliability and Redundancy

The dual-port design ensures continuous availability, even in case of port failure. This redundancy is critical for mission-critical applications where downtime is not acceptable.

Optimized Resource Utilization

Hardware offloading reduces CPU overhead, allowing servers to allocate resources more efficiently to applications. This optimization improves overall system performance and reduces operational costs.

Subcategory: SFP28 Network Adapters

Applications of SFP28 Adapters

SFP28 adapters are widely used in cloud computing, virtualization, and HPC environments. They provide the necessary bandwidth and reliability for demanding workloads.

Deployment Scenarios

Virtualized Infrastructure

In virtualized infrastructures, the Dell D4W5M ConnectX-4 Lx adapter ensures efficient resource allocation and consistent performance. Its SR-IOV support allows multiple virtual machines to share a single adapter without bottlenecks.

Cloud Service Providers

Cloud service providers benefit from the adapter’s scalability and high bandwidth. It enables them to deliver reliable services to customers while optimizing infrastructure costs.

Enterprise Applications

Enterprises running mission-critical applications rely on the adapter’s redundancy and performance. It ensures continuous availability and optimized resource utilization for applications such as ERP, CRM, and analytics.

Security and Efficiency

Secure Networking

The adapter supports secure networking protocols, ensuring data integrity and confidentiality. This is essential for enterprises handling sensitive information.

Energy Efficiency

Designed with energy efficiency in mind, the adapter reduces power consumption while delivering high performance. This helps organizations lower operational costs and meet sustainability goals.