58D2V Dell ConnectX-5 25GbE Dual Port EN SFP28 PCI E 3.0 x16 FH Interface Adapter

Dell 2 Ports ConnectX-5 Interface Adapter

The Dell 58D2V ConnectX-5 25GbE Dual Port EN SFP28 PCIe 3.0 x16 FH Interface Adapter is engineered for high-speed networking and optimized data transfer. This plug-in card delivers reliable connectivity for enterprise environments.

General Details

• Brand: Dell
• Model Number: 58D2V
• Category: Interface Adapter

Technical Specifications

Form Factor

• Compact plug-in card
• Low-profile design for space efficiency

Interface Type

• PCI Express 3.0 x16 bus
• Compliant with PCIe 3.0 revision standards

Port Configuration

• Dual 25 Gigabit SFP28 connectors
• Supports scalable bandwidth for modern data centers

Physical Dimensions

• Width: 5.6 inches
• Depth: 2.7 inches

Performance Features

Data Protocols

• Gigabit Ethernet
• 10 Gigabit Ethernet
• 25 Gigabit LAN

Transfer Speed

• Maximum throughput: 25 Gbps

Supported Network Protocols

• TCP/IP
• UDP/IP
• iSCSI

Compliance Standards

IEEE Protocols

Ethernet Standards

• IEEE 802.1q (VLAN tagging)
• IEEE 802.1p (Traffic prioritization)
• IEEE 802.3ad (Link aggregation)
• IEEE 802.3ae (10 Gigabit Ethernet)
• IEEE 802.3ap (Backplane Ethernet)
• IEEE 802.3az (Energy-efficient Ethernet)
• IEEE 802.3by (25 Gigabit Ethernet)

Advanced Standards

• IEEE 802.1ax (Link aggregation control)
• IEEE 802.1qbb (Priority-based flow control)
• IEEE 802.1qaz (Enhanced transmission selection)
• IEEE 802.1qau (Congestion notification)
• IEEE 802.1qbg (Edge virtual bridging)
• IEEE 1588v2 (Precision time protocol)

58D2V 2-Ports 25GbE 10Gigabit Interface Adapter Overview

The Dell 58D2V ConnectX-5 25GbE Dual Port EN SFP28 PCIe 3.0 x16 Full Height Interface Adapter belongs to a specialized category of high-performance Ethernet network interface cards engineered for data-intensive enterprise, cloud, and high-performance computing environments. This category represents a convergence of advanced networking silicon, low-latency data paths, and scalable bandwidth designed to support modern workloads that demand consistent throughput, reliability, and intelligent offloading. Products in this category are positioned as foundational infrastructure components within servers deployed in private data centers, colocation facilities, and hybrid cloud architectures.

Within the broader Ethernet adapter market, 25 Gigabit Ethernet solutions have emerged as a practical balance between performance and cost efficiency, replacing legacy 10GbE implementations while avoiding the power and cabling complexities associated with 40GbE and 100GbE in certain deployments. The Dell 58D2V adapter exemplifies this evolution by offering dual-port 25GbE connectivity through SFP28 interfaces, enabling flexible network design while maintaining compatibility with existing fiber infrastructure.

ConnectX-5 Architecture and Silicon Capabilities

This category is built upon the Mellanox ConnectX-5 controller architecture, which is widely recognized for its advanced packet processing capabilities and deep integration with modern server platforms. The ConnectX-5 silicon provides hardware acceleration for a variety of networking tasks, reducing CPU overhead and improving overall system efficiency. Adapters in this category leverage multi-core packet processing engines, high-speed DMA paths, and intelligent scheduling mechanisms to sustain line-rate performance across both ports simultaneously.

The PCI Express 3.0 x16 interface is a defining characteristic of this category, ensuring sufficient bandwidth between the adapter and the host system. This interface allows the Dell 58D2V adapter to fully utilize its dual 25GbE ports without bottlenecks, making it suitable for workloads that involve heavy east-west traffic, storage replication, or large-scale virtualization. The full-height form factor further positions this category for use in standard enterprise servers, ensuring mechanical compatibility and adequate airflow for sustained operation.

Low Latency and Deterministic Performance Characteristics

One of the defining attributes of the ConnectX-5-based adapter category is its emphasis on low latency and predictable performance. By handling packet steering, checksum offloads, and segmentation tasks directly in hardware, these adapters minimize jitter and reduce processing delays. This is particularly valuable in environments such as financial trading platforms, real-time analytics clusters, and distributed databases where microsecond-level latency variations can have measurable impacts on application behavior.

The Dell 58D2V adapter supports advanced queuing mechanisms and interrupt moderation features that allow system administrators to fine-tune performance characteristics based on workload requirements. This level of control makes the category appealing to organizations that require both high throughput and consistent response times under sustained load.

Dual-Port 25GbE SFP28 Connectivity

The dual-port SFP28 design is central to this category’s versatility. Each port supports 25 Gigabit Ethernet connections using SFP28 transceivers, enabling a wide range of deployment scenarios. This includes short-range connections within a rack, long-range fiber connections between data center zones, and breakout configurations when integrated with compatible switches. The use of SFP28 also allows organizations to select transceivers that match their distance, cost, and power requirements.

Adapters in this category are often deployed in redundant configurations, where dual ports are bonded or used for failover to enhance network resilience. The Dell 58D2V adapter supports these scenarios through standard Ethernet teaming and link aggregation features, ensuring continuous connectivity even in the event of a link or switch failure.

Scalability for Modern Data Center Networks

The 25GbE category represented by this adapter is inherently scalable. As data center networks transition from 10GbE to higher speeds, 25GbE provides a natural upgrade path that aligns with modern leaf-spine architectures. The Dell 58D2V adapter integrates seamlessly into these topologies, supporting high port density at the switch level while delivering ample bandwidth to individual servers.

This scalability extends beyond raw bandwidth to include support for virtualized networking constructs, containerized workloads, and software-defined networking frameworks. By offering consistent performance across both physical ports, the adapter category enables predictable scaling as server clusters grow.

Virtualization and Cloud Infrastructure Support

Virtualization is a core use case for this category of network adapters. The Dell 58D2V ConnectX-5 adapter is designed to support high densities of virtual machines and containers without compromising network performance. Hardware-assisted virtualization features allow network traffic to be efficiently segmented and delivered to individual virtual interfaces, reducing the overhead traditionally associated with software-based switching.

This category supports technologies such as SR-IOV, which enables direct assignment of virtual functions to guest operating systems. By bypassing the hypervisor’s networking stack, SR-IOV significantly reduces latency and CPU utilization, making the adapter ideal for performance-sensitive virtualized workloads. Cloud service providers and enterprises building private clouds benefit from this capability by achieving near bare-metal network performance within virtual environments.

Overlay Networking and Software-Defined Integration

Modern cloud architectures rely heavily on overlay networks to provide flexible, multi-tenant connectivity. The Dell 58D2V adapter category is optimized for these environments through support for encapsulation offloads, including VXLAN and NVGRE. By handling encapsulation and decapsulation in hardware, the adapter reduces the processing burden on host CPUs and maintains high throughput even as overlay complexity increases.

Integration with software-defined networking platforms is another key aspect of this category. The adapter’s advanced telemetry and management interfaces allow orchestration systems to monitor and control network behavior dynamically, aligning network performance with application demands.

Storage Networking and Data-Intensive Workloads

The Dell 58D2V ConnectX-5 adapter category is particularly well suited for storage networking applications. With dual 25GbE ports and low-latency characteristics, these adapters support high-performance storage protocols such as iSCSI and NFS over Ethernet. In hyper-converged infrastructure deployments, where storage and compute traffic share the same network fabric, the adapter’s ability to prioritize and isolate traffic streams becomes critical.

High-throughput data replication, backup operations, and distributed file systems benefit from the sustained bandwidth and reliable performance provided by this category. The adapter’s hardware offload capabilities ensure that large data transfers do not monopolize CPU resources, allowing storage nodes to maintain consistent application performance.

Support for RDMA and High-Performance Storage Protocols

Remote Direct Memory Access is a defining feature of the ConnectX-5-based adapter category. RDMA enables direct memory-to-memory data transfers between servers, bypassing the CPU and operating system networking stack. This results in dramatically lower latency and higher throughput, which is especially valuable for high-performance storage protocols and clustered applications.

The Dell 58D2V adapter supports RDMA over Converged Ethernet, allowing organizations to deploy RDMA within standard Ethernet networks. This capability positions the category as a bridge between traditional Ethernet environments and specialized high-performance computing infrastructures.

Operating System and Platform Compatibility

Adapters in this category are engineered for broad compatibility across major server platforms and operating systems. The Dell 58D2V ConnectX-5 adapter supports a wide range of enterprise Linux distributions, hypervisors, and modern operating systems commonly used in data center environments. This broad compatibility simplifies deployment and ensures consistent performance across heterogeneous infrastructures.

Driver maturity and ongoing firmware updates are key aspects of this category’s value proposition. Continuous improvements and optimizations ensure that the adapter remains compatible with evolving software stacks and emerging networking standards.