P66584-001 HPE 400GB Data Processing Unit 1 Port QSFP112 HHHL B3140H Adapter

Product Overview of HPE P66584-001 1 Port Adapter

The HPE P66584-001 400GB 1 Port Data Processing Unit InfiniBand NDR Ethernet QSFP112 HHHL B3140H Adapter belongs to the elite class of high‑performance smart network interface cards designed for the most demanding data center, HPC and enterprise workloads. This category is defined by the convergence of ultra‑high bandwidth (400Gb/s) and advanced data processing offload, enabled by a dedicated Data Processing Unit (DPU).

Main Specifications

• Manufacturer: HPE
• Part Number: P66584-001
• Product Type: High-Speed Ethernet Adapter

Technical Highlights

• Ultra-fast throughput reaching 400 Gigabits per second
• Designed for demanding enterprise workloads and intensive data traffic
• Single-port configuration for streamlined deployment
• QSFP112 connector ensuring compatibility with next-generation infrastructure
• Compact HHHL (Half-Height, Half-Length) design
• Optimized for space-constrained server environments

Cable Support

• Compatible with NDR QSFP112 cables
• Ensures reliable and efficient signal transmission

Server Compatibility

Supported Platforms

• Engineered for seamless integration with HPE XD670 servers
• Fully supported on HPE XD665 systems

Deployment Benefits

• Boosts network bandwidth for enterprise applications
• Ideal for data-intensive workloads, virtualization, and cloud environments

Key Advantages

• Future-ready design supporting next-gen networking standards
• Reliable performance backed by HPE engineering excellence

HPE P66584-001 400GB InfiniBand Ethernet Adapter

The HPE P66584-001 400GB 1 Port Data Processing Unit InfiniBand NDR Ethernet QSFP112 HHHL B3140H Adapter is engineered to deliver extreme throughput, ultra-low latency data transport, and intelligent offload acceleration for modern enterprise infrastructure. Built around advanced networking silicon optimized for next-generation fabrics, this adapter supports both InfiniBand NDR and high-performance Ethernet environments, allowing data centers to standardize high-bandwidth interconnect strategies while maintaining deployment flexibility. The HHHL form factor enables compatibility with a wide range of rackmount servers, blade platforms, and high-density compute nodes where space efficiency and thermal optimization are critical.

400GB Throughput Processing Capability

This adapter is designed to operate at 400 gigabits per second data rates, enabling large-scale cluster communication, high-speed storage access, and real-time distributed computing workloads. The architecture supports advanced packet steering, traffic shaping, and hardware-accelerated switching logic, ensuring consistent throughput even under heavy load conditions. The single-port QSFP112 interface provides the bandwidth density required for hyperscale environments while minimizing port count, cable complexity, and power consumption per gigabit.

High-Bandwidth Fabric Integration

The networking controller integrates multi-lane signal processing optimized for 112G PAM4 signaling, ensuring stable transmission across compatible optical and copper interconnects. Adaptive equalization and forward error correction mechanisms maintain signal integrity across extended distances and high-frequency channels, which is essential for large data center topologies and HPC clusters that rely on deterministic performance.

Latency Optimization

Hardware pipeline acceleration within the adapter reduces transmission delay by offloading packet processing from host CPUs. This results in predictable latency behavior that is crucial for real-time analytics, AI training clusters, and distributed database replication. The architecture is tuned for microsecond-level responsiveness, allowing applications to scale horizontally without suffering performance degradation from networking bottlenecks.

Data Processing Unit Offload Technology

The integrated Data Processing Unit design provides intelligent workload acceleration capabilities that extend beyond traditional network interface cards. By embedding programmable processing resources directly on the adapter, the device can handle tasks such as encryption, virtualization switching, telemetry collection, and protocol offload independently from the host system. This reduces CPU utilization and frees server cores for application processing.

Security Acceleration Features

Built-in cryptographic acceleration enables high-speed encryption and decryption operations for secure data transport across network fabrics. Hardware-based isolation mechanisms support secure multi-tenant environments and protect sensitive workloads from unauthorized access. These security features operate at line rate, ensuring that enabling protection does not compromise throughput.

Virtualization

The adapter supports advanced virtualization technologies, including SR-IOV, scalable I/O virtualization, and hardware-assisted network slicing. These capabilities allow multiple virtual machines or containers to share the same physical interface while maintaining isolated bandwidth channels and guaranteed quality of service. Network overlays and virtual switching functions can be executed directly on the DPU hardware, eliminating software overhead and improving packet handling efficiency.

Data Path Processing

Programmable acceleration blocks enable administrators to implement custom packet inspection, filtering, or transformation logic within the adapter itself. This flexibility supports specialized workloads such as high-frequency trading, telemetry streaming, and AI data ingestion pipelines that require deterministic packet handling and minimal processing latency.

InfiniBand NDR Performance

Support for InfiniBand NDR enables ultra-high bandwidth fabric communication for supercomputing clusters and parallel processing environments. The adapter implements advanced transport protocols that provide reliable, ordered delivery with hardware-based congestion control and adaptive routing support. These features ensure optimal link utilization even in complex mesh or fat-tree network topologies.

Scalable Cluster Communication

The P66584-001 InfiniBand NDR capability allows thousands of compute nodes to interconnect with consistent performance characteristics. High message rate processing, efficient RDMA transfers, and hardware multicast support enable large-scale distributed workloads to exchange data rapidly without CPU overhead. This makes the adapter suitable for scientific simulation, financial modeling, and AI training clusters requiring synchronized node communication.

RDMA Acceleration

Remote Direct Memory Access functionality allows data to move directly between application memory spaces across the network without involving the host processor. This significantly reduces latency and improves throughput for storage replication, database synchronization, and parallel computing operations. The hardware engine ensures reliable delivery and maintains memory protection boundaries while sustaining maximum transfer speeds.

Congestion Control Intelligence

Advanced congestion management algorithms dynamically adjust transmission rates based on real-time network conditions. This prevents packet loss and ensures consistent throughput across multi-node fabrics, even during peak traffic scenarios. The integrated monitoring logic continuously evaluates link health and adjusts flow parameters to maintain optimal performance.

Ethernet Compatibility and Flexibility

In addition to InfiniBand operation, the adapter supports high-speed Ethernet connectivity, enabling seamless integration into existing network infrastructures. The dual-protocol capability allows organizations to deploy a unified hardware platform that can be configured for different fabric types depending on workload requirements or infrastructure architecture.

QSFP112 Interface

The P66584-001 QSFP112 port supports high-density cabling and optical modules designed for 400GbE transmission. The connector design ensures secure seating, reliable electrical contact, and efficient heat dissipation, which are essential for maintaining stable performance during sustained high-bandwidth operation. The port supports a range of compatible transceiver modules, enabling flexible deployment distances from short-reach copper to long-haul fiber links.

Signal Integrity

Integrated signal conditioning circuits compensate for channel impairments, ensuring stable link establishment and sustained throughput. Automatic calibration routines analyze link characteristics during initialization and apply adaptive tuning parameters to optimize performance for each connected cable or module.

Energy Efficiency Optimization

The adapter incorporates dynamic power scaling features that adjust energy consumption according to traffic load. Low-power idle states and intelligent clock gating reduce electricity usage during periods of reduced activity while preserving rapid wake capability for burst workloads.

Form Factor Specifications

The HHHL form factor allows installation in a broad range of server chassis, including compact rackmount systems and high-density compute nodes. The design balances performance with thermal efficiency, using optimized airflow channels and heat dissipation structures to maintain stable operating temperatures under continuous heavy load.

Power Efficiency

Advanced heat spreader materials and component placement strategies ensure uniform thermal distribution across the board. This prevents localized hotspots and extends component lifespan. The adapter is validated for operation in high-temperature server environments, supporting long-duration workloads without throttling.

PCIe Interface Integration

The HPE P66584-001 adapter utilizes a high-bandwidth PCI Express interface to communicate with the host system. This ensures that internal bus throughput does not limit external network performance. Optimized DMA pathways enable efficient data transfer between host memory and network buffers, reducing overhead and maximizing throughput.

Reliability

Component selection and circuit design prioritize long-term reliability and consistent operation. The adapter undergoes extensive validation testing for signal integrity, thermal endurance, and workload stability to ensure dependable performance in mission-critical environments.