0NTK4 Dell Intel E810-XXVDA4 25 GBE Quad Port Network Adapter

Overview of the Dell 0NTK4 4 Ports Network Adapter

The Dell 0NTK4 Ethernet PCI-Express Network Interface Card is designed for seamless server connectivity to your network infrastructure. This quad-port server adapter is recognized for its dependability and adherence to industry standards. Rigorously tested and validated for use on Dell systems, it also comes with technical support from Dell when utilized with compatible hardware.

General Information

• Manufacturer: Dell
• Part Number: 0NTK4
• Product Type: Quad-Port Network Adapter

Technical Information

• Form Factor: OCP 3.0 standard
• Interface: PCI Express 4.0 x16 slot
• Connectivity: Four-port configuration for versatile deployment
• Transmission Speed: 25 Gigabits per second
• Optimized Protocols: High-speed data throughput for enterprise workloads
• Scalability: Multi-port design ensures flexible networking expansion

Compatibility

• PowerEdge R660
• PowerEdge R660xs
• PowerEdge R6625
• PowerEdge R760
• PowerEdge R760xd2
• PowerEdge R760xs
• PowerEdge R860
• PowerEdge R960

Tower & Modular Systems

• PowerEdge T560
• PowerEdge C6620

High-Performance & Specialized Platforms

• PowerEdge Xe8640
• PowerEdge Xe9680
• PowerEdge Xr5610
• PowerEdge Xr7620

Deployment Advantages

• Seamless integration with Dell’s latest server portfolio
• Enhanced bandwidth for virtualization and cloud workloads
• Reliable throughput for data-intensive applications

Dell 0NTK4 Intel E810-XXVDA4 25GbE Adapter

The Dell 0NTK4 Intel E810-XXVDA4 Quad Port 25GbE SFP28 OCP 3.0 Adapter represents a high-performance network interface solution engineered for modern hyperscale data centers, cloud infrastructures, virtualization environments, and enterprise-grade server deployments. Built on Intel’s advanced Ethernet 800 Series controller architecture, this adapter is optimized for ultra-low latency, high throughput, and efficient packet processing across demanding workloads. Designed specifically for OCP 3.0 (Open Compute Project) server platforms, it delivers dense network connectivity with four independent 25 Gigabit Ethernet ports, enabling scalable bandwidth aggregation and flexible network segmentation for next-generation workloads.

As organizations continue to transition toward software-defined networking, containerized applications, and NVMe-over-Fabrics storage architectures, the demand for high-speed, low-latency, and highly efficient network adapters has increased significantly. The Dell 0NTK4 adapter addresses these needs by combining Intel E810 silicon with Dell’s enterprise validation and firmware integration, ensuring compatibility, stability, and optimized performance in Dell OCP-compatible server ecosystems.

Intel E810 Network Controller Architecture

At the core of the Dell 0NTK4 adapter lies the Intel E810 Ethernet controller, which is engineered with a highly optimized packet processing pipeline. This architecture enables efficient handling of small and large packet workloads, reducing CPU overhead while maximizing throughput. The controller is designed to support modern network workloads such as microservices communication, distributed storage replication, and high-frequency trading systems where microsecond-level latency improvements can significantly impact performance.

Scalable Multi-Port

The quad-port configuration of the adapter provides four independent 25GbE SFP28 interfaces, allowing flexible network topologies. Each port operates independently or can be combined using bonding or teaming technologies to achieve higher aggregate bandwidth. This flexibility makes the adapter suitable for spine-leaf architectures commonly used in modern data centers.

Hardware Offload Capabilities

The Intel E810 controller integrates advanced hardware offload engines for checksum calculations, segmentation offload, and packet classification. These capabilities reduce CPU utilization and free system resources for application workloads, making it ideal for virtualization hosts and cloud compute nodes.

OCP 3.0 Form Factor Integration

Optimized for Open Compute Project Standards

The Dell 0NTK4 adapter is designed for OCP 3.0 specifications, ensuring compatibility with modern disaggregated server architectures. OCP 3.0 emphasizes modularity, airflow efficiency, and serviceability, making this adapter suitable for large-scale deployments where rapid maintenance and high-density networking are critical.

Front I/O Efficiency

OCP 3.0 design principles include optimized airflow direction and improved thermal efficiency. The adapter’s layout is engineered to minimize thermal hotspots while ensuring consistent performance under sustained high-throughput workloads. This is particularly important in dense rack environments where multiple high-speed adapters operate in close proximity.

Modular Server Ecosystem Compatibility

The adapter integrates seamlessly into modular server designs, enabling operators to upgrade networking capabilities without replacing entire server systems. This modularity reduces operational costs and enhances lifecycle management efficiency.

25GbE SFP28 Connectivity and High-Speed Networking

Next-Generation Ethernet Performance

Each of the four ports on the Dell 0NTK4 adapter supports 25 Gigabit Ethernet speeds via SFP28 optical transceiver slots. This enables significantly higher throughput compared to traditional 10GbE solutions, making it ideal for modern data-intensive workloads such as real-time analytics, AI model training pipelines, and large-scale virtualization clusters.

Flexible Optical and Copper Options

SFP28 interfaces allow support for both fiber optic and direct attach copper (DAC) cables. This flexibility enables network architects to choose cost-effective or long-distance connectivity options depending on deployment requirements. Fiber optic configurations are typically used for inter-rack or inter-building connections, while DAC solutions are preferred for short-distance, low-latency server-to-switch links.

High Bandwidth Aggregation

With four 25GbE ports, the adapter can deliver up to 100Gbps of aggregate bandwidth. This makes it suitable for aggregation layers in leaf-spine network topologies, ensuring that compute nodes are not bottlenecked by network limitations during peak traffic loads.

Virtualization and Cloud Infrastructure Optimization

SR-IOV Support for Virtual Machines

Single Root I/O Virtualization (SR-IOV) is a key feature supported by the Intel E810 architecture. This technology allows a single physical network adapter to be partitioned into multiple virtual functions, enabling direct assignment to virtual machines. This reduces hypervisor overhead and improves network performance for virtualized workloads.

Containerized Workload Efficiency

In containerized environments such as Kubernetes clusters, the Dell 0NTK4 adapter provides efficient network segmentation and traffic isolation. The hardware offload capabilities ensure that container networking remains performant even under heavy microservice communication loads.

Cloud-Native Application Performance

Cloud-native architectures rely heavily on east-west traffic between distributed services. The low-latency design of this adapter ensures minimal packet processing delays, which improves overall application responsiveness and scalability.

Storage Networking and Offload Acceleration

NVMe over Fabrics Support

The adapter is well-suited for NVMe over Fabrics (NVMe-oF) deployments, enabling high-speed access to remote storage resources over Ethernet. This allows organizations to build disaggregated storage architectures that decouple compute and storage resources while maintaining high performance.

iSCSI and TCP Offload Engines

Built-in iSCSI offload capabilities reduce CPU load by handling storage protocol processing directly on the network controller. This improves storage throughput and reduces latency in enterprise storage environments.

Data Integrity Enhancements

The adapter includes advanced data integrity features such as checksum offloading and error detection mechanisms that ensure reliable data transmission across high-speed networks.

Enterprise Data Center Deployment Scenarios

Hyperscale Infrastructure Environments

In hyperscale environments, the Dell 0NTK4 adapter supports massive parallel workloads by providing consistent high-speed connectivity across thousands of nodes. Its quad-port design enables flexible redundancy and load balancing strategies.

High-Performance Computing Clusters

HPC environments benefit from the adapter’s low latency and high bandwidth capabilities, particularly in scientific computing, financial modeling, and AI training clusters where inter-node communication is critical.

Enterprise Virtual Desktop Infrastructure

Virtual desktop infrastructure (VDI) deployments require stable and responsive network performance. The adapter ensures smooth user experiences by minimizing jitter and packet loss during remote session delivery.

Security and Data Protection Features

Hardware-Based Security Offloads

The adapter includes hardware acceleration for encryption and secure data processing protocols, helping protect sensitive data without degrading system performance.

Secure Boot and Firmware Integrity

Firmware validation mechanisms ensure that only trusted firmware versions are executed on the adapter, reducing the risk of malicious code injection at the hardware level.

Network Isolation Capabilities

Virtual LAN segmentation and traffic isolation features allow administrators to separate workloads securely within shared infrastructure environments.

Thermal Efficiency

Energy-Efficient Networking Design

The adapter is designed to minimize power consumption while maintaining high throughput performance. This is critical for reducing operational costs in large-scale data centers.

Dynamic Power Scaling

Power usage adjusts dynamically based on network load, ensuring optimal energy efficiency during both peak and idle conditions.

Advanced Cooling Compatibility

The OCP 3.0 form factor ensures proper airflow alignment within server chassis, contributing to improved cooling efficiency and system longevity.

Support for Emerging Workloads

The Dell 0NTK4 adapter is designed to support evolving workloads such as artificial intelligence, machine learning inference pipelines, and edge computing deployments.

Infrastructure Expansion Flexibility

Its modular design allows organizations to scale network capacity without requiring major infrastructure redesigns, making it a future-proof investment for enterprise IT environments.

Long-Term Enterprise Reliability

Engineered with durability and consistency in mind, the adapter supports continuous operation in mission-critical environments where downtime is not acceptable.