P23664-H21 HPE 200GB 1 Port Adapter

HPE P23664-H21 InfiniBand 200GB QSFP56 Adapter Overview

The HPE P23664-H21 InfiniBand HDR/Ethernet 200GB QSFP56 PCIe4 x16 MCX653105A-HDAT 1 Port Adapter is an enterprise-grade network adapter engineered for modern high-performance computing environments, AI clusters, cloud-scale data centers, enterprise virtualization, scientific research, and mission-critical storage infrastructures. Designed to deliver exceptional bandwidth, ultra-low latency, and intelligent hardware acceleration, this adapter enables organizations to maximize server efficiency while ensuring consistent communication across demanding computing workloads. Built around advanced networking technology, the adapter supports both HDR InfiniBand and high-speed Ethernet connectivity, making it a flexible solution for organizations that require scalable infrastructure capable of supporting continuously growing computational requirements.

As data-intensive applications continue to expand across industries, organizations require network adapters capable of eliminating communication bottlenecks while supporting next-generation processors, PCI Express Gen4 architecture, GPU computing, software-defined infrastructure, and distributed storage platforms. The HPE P23664-H21 adapter fulfills these requirements by combining a single QSFP56 port with PCIe 4.0 x16 bandwidth, allowing servers to efficiently transfer massive datasets with minimal latency and maximum throughput.

Advanced HDR InfiniBand and Ethernet Connectivity

One of the defining characteristics of the HPE P23664-H21 adapter is its support for both HDR InfiniBand and high-speed Ethernet networking. This dual-protocol capability provides organizations with greater deployment flexibility while reducing hardware complexity. Businesses can standardize on a single adapter model across multiple environments, whether implementing high-performance InfiniBand fabrics or high-bandwidth Ethernet infrastructures.

HDR InfiniBand technology has become a preferred networking standard within supercomputing centers, AI research laboratories, engineering simulations, genomic sequencing environments, and financial analytics platforms because of its extremely low latency and exceptional communication efficiency. Ethernet compatibility further broadens deployment possibilities, making the adapter suitable for enterprise cloud architectures, virtualization clusters, hyper-converged infrastructures, and large-scale storage networks.

200Gb Bandwidth Designed for Modern Data Centers

Modern applications generate exponentially increasing amounts of information that must move quickly between processors, storage devices, accelerators, and networking equipment. A 200Gb networking adapter dramatically reduces communication delays, allowing servers to process larger workloads without network congestion becoming a performance limitation.

Whether handling machine learning datasets, distributed databases, real-time analytics, virtualization traffic, or parallel scientific calculations, the HPE P23664-H21 adapter provides sufficient bandwidth to maintain continuous communication between nodes while minimizing latency.

Single-Port QSFP56 Interface

The integrated QSFP56 interface supports high-speed optical and direct-attach cable connectivity suitable for enterprise switches and InfiniBand fabrics. QSFP56 technology offers greater transmission efficiency while supporting modern cabling standards commonly deployed throughout enterprise and hyperscale data centers.

The single-port architecture simplifies deployment while maintaining sufficient bandwidth for demanding server workloads. Organizations requiring dedicated high-speed connectivity can efficiently deploy the adapter within compute nodes, storage servers, GPU servers, or virtualization hosts.

PCI Express 4.0 x16 Architecture

The HPE P23664-H21 utilizes a PCI Express Gen4 x16 host interface, allowing the adapter to fully utilize available system bandwidth. PCIe 4.0 significantly increases communication capacity between the network adapter and server processors compared to previous generations, ensuring that networking performance is not limited by internal server communication.

PCIe Gen4 technology is particularly important for applications involving GPU computing, NVMe storage, artificial intelligence, and large-scale distributed computing because it enables significantly faster movement of data between hardware components.

Reduced Internal Bottlenecks

High-performance networking requires more than external bandwidth. Internal communication between CPUs, memory, storage controllers, and networking hardware must also remain efficient. PCIe4 x16 architecture ensures sufficient bandwidth between the adapter and host server, reducing bottlenecks during sustained high-throughput operations.

Compatibility with Enterprise Servers

The adapter is designed for deployment in enterprise-class HPE servers and compatible PCIe Gen4 platforms that require reliable networking performance. Its standardized PCIe implementation simplifies installation while allowing administrators to integrate the adapter into existing infrastructure without extensive hardware modifications.

Low-Latency Communication for HPC Environments

Latency is often more important than bandwidth within high-performance computing environments. Scientific simulations, weather forecasting, computational chemistry, artificial intelligence training, and engineering applications frequently exchange millions of messages between distributed computing nodes. The HPE P23664-H21 adapter minimizes communication delays, allowing processors to remain productive instead of waiting for network responses.

Ultra-low latency networking contributes directly to faster application completion times, improved cluster utilization, and higher computational efficiency.

Accelerating Distributed Computing

Large computing clusters depend upon synchronized communication between hundreds or thousands of servers. Every reduction in network latency contributes to faster application execution. The adapter enables efficient communication across distributed workloads while maintaining consistent performance under heavy traffic conditions.

Support for Parallel Processing

Parallel processing applications divide workloads across multiple computing nodes. High-speed InfiniBand communication enables these nodes to exchange information rapidly, improving scalability while reducing synchronization delays that often limit cluster performance.

Efficient Node-to-Node Communication

Fast node communication improves overall cluster productivity by allowing processors to spend more time performing calculations rather than waiting for network transfers. This efficiency becomes increasingly valuable as cluster sizes continue expanding.

AI and Machine Learning Infrastructure

Artificial intelligence and deep learning environments require networking solutions capable of moving massive datasets between CPUs, GPUs, storage arrays, and training clusters. The HPE P23664-H21 adapter provides the bandwidth necessary for efficient GPU communication, enabling organizations to accelerate model training and inference workloads.

Machine learning applications continuously exchange parameters, gradients, and training data across distributed GPU clusters. HDR InfiniBand significantly reduces synchronization delays, allowing AI infrastructure to scale efficiently while maintaining consistent performance.

GPU Cluster Optimization

GPU servers frequently require networking capable of matching accelerator performance. High-speed QSFP56 connectivity helps prevent network limitations from reducing GPU utilization, ensuring computational resources remain fully productive throughout training cycles.

Large Dataset Processing

AI applications often process petabytes of structured and unstructured information. High-bandwidth networking allows rapid movement of datasets between storage systems and compute nodes while minimizing idle time.

Enterprise Virtualization Performance

Virtualized data centers consolidate multiple workloads onto shared physical hardware. As virtual machine density increases, networking demands grow significantly. The HPE P23664-H21 adapter supports these environments by providing sufficient bandwidth for simultaneous virtual machine communication, storage traffic, backup operations, and live migration activities.

Virtual Machine Mobility

Live migration technologies require continuous high-speed communication between hosts. The adapter facilitates seamless movement of workloads while minimizing migration duration and reducing service interruptions.

Cloud Infrastructure

Private and hybrid cloud deployments depend upon reliable networking capable of supporting orchestration platforms, software-defined networking, containerized workloads, and virtual storage systems. High-performance connectivity contributes to responsive cloud services while supporting infrastructure scalability.

Storage Networking Applications

Enterprise storage systems increasingly rely upon high-speed networking for data replication, distributed storage, backup operations, and disaster recovery. The HPE P23664-H21 adapter enables storage servers to communicate efficiently with compute resources while supporting rapid access to critical information.

NVMe Storage Environments

NVMe storage delivers exceptional performance that requires equally capable networking infrastructure. High-bandwidth adapters ensure storage communication remains efficient without introducing unnecessary latency.

Distributed Storage Clusters

Scale-out storage architectures depend upon continuous communication between storage nodes. The adapter supports these environments by enabling reliable high-speed data transfers that improve storage availability and overall system responsiveness.

Hardware Acceleration Technologies

Modern enterprise networking extends beyond simple packet transmission. Intelligent adapters incorporate advanced hardware acceleration capabilities that reduce processor overhead while improving application performance. By offloading networking operations from the CPU, the HPE P23664-H21 allows processors to dedicate additional resources to application execution.

Reduced CPU Utilization

Hardware offload technologies improve server efficiency by processing networking tasks directly on the adapter. Lower processor utilization results in increased application performance, improved virtualization density, and enhanced workload scalability.

Optimized Data Transfers

Efficient packet handling reduces latency while increasing throughput. Organizations benefit from faster communication, improved responsiveness, and greater infrastructure utilization across demanding enterprise workloads.

Security and Reliability Features

Enterprise networking requires dependable hardware capable of maintaining continuous operation under sustained workloads. The HPE P23664-H21 adapter is designed for reliability, stability, and predictable performance within mission-critical environments.

Advanced error detection, reliable packet transmission, hardware diagnostics, and enterprise firmware management contribute to stable long-term operation while reducing maintenance requirements.

Consistent Enterprise Availability

Organizations operating around the clock require networking hardware capable of maintaining continuous communication without interruption. Enterprise-quality engineering supports reliable infrastructure operation across production environments.

Deployment Across Multiple Industries

The HPE P23664-H21 adapter serves organizations across numerous industries that demand reliable, low-latency networking. Universities, research institutions, healthcare providers, manufacturing companies, engineering organizations, telecommunications providers, cloud service operators, financial institutions, and government agencies all benefit from high-performance networking technologies.

Scientific Research

Research laboratories rely upon distributed computing for simulations, molecular modeling, climate studies, and genomic analysis. High-speed InfiniBand communication enables researchers to process complex workloads more efficiently.

Financial Computing

Financial organizations require low-latency networking for algorithmic trading, risk analysis, fraud detection, and real-time market processing. High-performance adapters contribute to faster transaction processing while maintaining reliable communication between servers.

Engineering and Design

Computer-aided engineering, computational fluid dynamics, finite element analysis, and three-dimensional rendering applications benefit from rapid communication between distributed processing resources. Faster networking reduces project completion times while improving engineering productivity.

Scalable Infrastructure for Future Growth

Enterprise infrastructure continues evolving as workloads become increasingly data intensive. The HPE P23664-H21 adapter provides a scalable networking foundation capable of supporting expanding computational requirements while protecting long-term infrastructure investments. Organizations deploying AI platforms, high-performance storage, virtualization clusters, and cloud-native applications can rely on this adapter to deliver consistent networking performance across evolving workloads.