P43269-B21 HPE 4Ports 1GBE BASE-T I350-T4 OCP3 Adapter.

HPE P43269-B21 4Ports 1GbE BASE-T I350-T4 OCP3 Networking Adapter Overview

The HPE P43269-B21 is a high-performance, cost-efficient 1GbE networking adapter featuring four RJ-45 ports powered by the Intel I350-T4 controller. Designed specifically for HPE ProLiant and other server platforms, this Open Compute Project (OCP) 3.0 form factor adapter supports multiple enterprise and data center workloads. With its low power consumption, enhanced virtualization features, and robust manageability, the P43269-B21 is a key component for businesses optimizing their networking infrastructure.

Reliable Networking Performance with Intel I350-T4 Controller

At the heart of the HPE P43269-B21 is the Intel I350-T4 Ethernet controller, which is widely recognized for delivering reliable and consistent 1GbE networking performance. This controller supports advanced features like IEEE 1588 precision time stamping, VLAN filtering, and checksum offloading, all of which help reduce CPU overhead and improve packet throughput. The controller is fully compliant with PCIe Gen 3.0 interface specifications and ensures a high-speed data path between the server and network fabric.

Hardware Offloading and Performance Benefits

The Intel I350-T4 supports numerous offload features such as TCP segmentation offload (TSO), large receive offload (LRO), and checksum offloading. These capabilities allow the network adapter to handle some packet-processing tasks independently, significantly reducing the workload on the host CPU. The result is improved system performance and efficiency, especially in environments with heavy traffic or virtualized workloads.

Reduced Latency for Mission-Critical Workloads

With its capability to process high-speed packet transmission with minimal delay, the HPE P43269-B21 adapter is ideal for latency-sensitive applications like financial trading, real-time analytics, and media streaming. Advanced interrupt moderation and adaptive interrupt coalescing further optimize the adapter’s responsiveness, ensuring minimal jitter and consistent low-latency communication.

Open Compute Project (OCP) 3.0 Form Factor Compatibility

The P43269-B21 is designed to fit into servers with OCP 3.0 mezzanine slots, which are increasingly popular in cloud and hyperscale data centers. This standardized form factor helps reduce the number of cables and simplifies airflow management, resulting in better cooling and overall system reliability.

Space Efficiency in Rack Environments

By using the OCP 3.0 form factor, this networking adapter minimizes space usage while maximizing connectivity. Rack-mounted servers in dense configurations benefit from the compact design of the OCP 3.0 module, making it easier for IT administrators to scale network infrastructure without occupying valuable PCIe slots.

Future-Proofed Architecture and Scalability

Supporting a modular and scalable infrastructure, the HPE P43269-B21 makes it easy to adapt to evolving networking demands. Its forward-looking design accommodates expanding workloads and new virtualization strategies, helping IT teams future-proof their data center investments.

Quad-Port Gigabit Ethernet for Multi-Interface Deployments

Featuring four individual 1GbE RJ-45 ports, the P43269-B21 allows for flexible deployment strategies such as load balancing, failover, link aggregation (LACP), and network partitioning. Each port provides dedicated connectivity, enabling performance tuning and redundancy configurations to meet diverse operational needs.

Versatile Connectivity Options with RJ-45 Interface

The standard RJ-45 connectors ensure seamless compatibility with existing Cat5e/Cat6 copper Ethernet cabling. This reduces the cost and complexity of upgrading infrastructure, particularly in mixed-environment data centers that may still rely on copper-based networking solutions.

Simplified Cabling and Installation

Using common twisted-pair cables for connectivity, the P43269-B21 simplifies deployment and reduces maintenance overhead. Administrators can quickly set up or replace adapters without specialized tools or fiber optics training, enhancing uptime and lowering operational costs.

Ideal for Virtualized and Cloud Workloads

With its support for SR-IOV (Single Root I/O Virtualization), the HPE P43269-B21 enables direct access between virtual machines and the network interface. This results in better throughput and lower latency for virtual environments, improving performance for cloud-native applications and software-defined data centers.

Advanced Network Partitioning (NPAR) Support

Network Partitioning allows IT administrators to divide the physical adapter into multiple virtual adapters, each with its own bandwidth, policies, and network stack. This helps to isolate traffic types (e.g., management, storage, VM, backup) and increases operational flexibility in shared network environments.

Energy-Efficient Design with Thermal Optimization

The HPE P43269-B21 incorporates advanced energy efficiency techniques, including support for Energy Efficient Ethernet (EEE) and DMA coalescing. These features dynamically reduce power consumption during periods of low data traffic, helping organizations meet sustainability goals without compromising performance.

Optimized for Power-to-Performance Ratio

The adapter’s intelligent power management helps lower the Total Cost of Ownership (TCO) over its lifecycle. It is optimized for both idle and peak usage, ensuring that systems operate within thermal and energy consumption thresholds even during intensive workloads.

Enhanced Airflow with OCP3 Design

The open-edge architecture of the OCP3.0 form factor promotes unobstructed airflow within server chassis. By facilitating more efficient heat dissipation, the HPE P43269-B21 contributes to longer component life spans and stable system performance under continuous operation.

Seamless Integration with HPE ProLiant Servers

The P43269-B21 is fully validated and tested for compatibility with HPE ProLiant Gen10, Gen10 Plus, and Gen11 servers. Tight integration with HPE system firmware, drivers, and management software ensures optimal interoperability and reduced troubleshooting complexity.

iLO and HPE System Insight Manager

HPE Insight Manager and iLO (Integrated Lights-Out) technologies support proactive health monitoring and lifecycle management of the P43269-B21. Real-time alerting and performance tracking enable IT staff to detect issues before they impact system availability.

Firmware Updates and Lifecycle Assurance

Customers benefit from HPE’s continuous firmware update support, which ensures the adapter remains secure and compatible with evolving industry standards. These updates also include performance improvements and bug fixes, further extending the adapter’s reliability.

Secure Networking with Integrated Hardware Features

The HPE P43269-B21 includes integrated security capabilities to safeguard sensitive data. Features such as firmware validation, secure boot, and MAC address filtering help protect against unauthorized access and firmware tampering.

Hardware Root of Trust and Secure Boot

The secure boot process ensures only trusted firmware is executed on the networking adapter. This reduces the risk of firmware-level attacks and provides assurance that the adapter operates within a known good state at all times.

Support for VLANs and Port Isolation

VLAN tagging enables network segmentation at the adapter level, ensuring sensitive data is kept separate from other traffic. Administrators can configure each of the four ports with isolated roles or security policies to support compliance requirements and network hygiene.

Deployment Scenarios and Use Cases

The HPE P43269-B21 is suitable for a wide range of deployment scenarios, including small business servers, mid-sized enterprises, high-performance computing clusters, and cloud data centers. Its flexible configuration options and enterprise-grade reliability make it a versatile choice across industries.

Data Center Networking and High Availability

In a data center environment, the adapter can be deployed in a redundant configuration across multiple nodes to ensure failover protection. Support for link aggregation protocols like LACP improves both bandwidth utilization and fault tolerance.

Virtual Desktop Infrastructure (VDI)

For organizations implementing VDI, the P43269-B21 delivers consistent network performance for thin clients and remote desktops. Its virtualization enhancements help reduce latency and increase VM density per server, improving the end-user experience.

Storage Area Network (SAN) Access

While primarily a 1GbE adapter, the P43269-B21 can be integrated into iSCSI SANs for cost-effective storage access. It supports advanced queueing and jumbo frames to improve SAN performance and stability over copper Ethernet.

Compliance, Certification, and Information

The HPE P43269-B21 meets a wide array of industry certifications, including RoHS, CE, FCC, and UL. HPE offers a limited lifetime for the adapter, ensuring customer confidence in its quality and durability.

Environmental and Regulatory Standards

This adapter is built in compliance with global environmental and safety standards. It is free from harmful substances and supports eco-conscious deployment initiatives, including energy-efficient certifications.

HPE P43269-B21 for Your Network

Whether your business is upgrading an existing infrastructure, expanding data center capabilities, or optimizing virtualization environments, the HPE P43269-B21 delivers a balanced blend of performance, efficiency, and manageability. Its quad-port configuration, OCP3.0 design, Intel I350-T4 controller, and full compatibility with HPE servers make it an ideal choice for modern enterprise IT environments.

Cost-Effective Networking Without Compromise

By offering four 1GbE ports in a compact form factor, the P43269-B21 minimizes hardware costs while maximizing network density. Its features cater to demanding applications without requiring premium-priced 10GbE or 25GbE solutions.

Flexible Integration and Broad Compatibility

The wide interoperability with various network operating systems, virtualization platforms, and management tools makes deployment seamless. Whether in a bare-metal environment or a complex virtualized network, the P43269-B21 provides the reliability and flexibility you need.