P79931-001 HPE 400GbE QSFP112 1-port Single-mode 500m Transceiver

HPE P79931-001 400GbE Single-Mode Optical Transceiver

The HPE P79931-001 is a high-performance 400GbE QSFP112 optical transceiver engineered for modern data center, cloud computing, enterprise networking, and high-performance computing environments. Designed to support both InfiniBand XDR and Ethernet connectivity, this advanced optical module delivers exceptional bandwidth, ultra-low latency, and dependable signal transmission across distances of up to 500 meters over single-mode fiber infrastructure. Its compact QSFP112 form factor enables seamless integration into next-generation networking equipment while maximizing port density and reducing overall cabling complexity.

General Information

• Brand: HPE
• Model Number: P79931-001
• Product Type: Optical Network Transceiver

Technical Specifications

• Form Factor: QSFP112
• Data Rate: 400GbE
• Maximum Transmission Distance: 500 Meters
• Fiber Type: Single-Mode Fiber (SMF)
• Supported Protocols: InfiniBand XDR and Ethernet
• Weight: 0.21 kg (0.472 lb)
• Dimensions: 20 x 7.68 x 2.65 cm (7.87 x 3.02 x 1.04 in)

Highlight of the HPE P79931-001 Transceiver

• Supports ultra-fast 400 Gigabit Ethernet connectivity.
• QSFP112 form factor optimized for high-density networking deployments.
• Compatible with InfiniBand XDR and Ethernet architectures.
• Single-mode fiber support for extended communication distances.
• Maximum transmission range of up to 500 meters.
• Low-latency optical communication for demanding workloads.
• Designed for large-scale data center and cloud environments.
• Enterprise-class reliability and performance consistency.
• Optimized for high-throughput networking infrastructures.
• Helps simplify network expansion and scalability initiatives.

Single-Mode Fiber Connectivity

• Enhanced signal quality across extended distances.
• Reduced attenuation and improved optical performance.
• Suitable for large-scale enterprise infrastructures.
• Supports future network expansion requirements.
• Ideal for high-speed backbone connectivity.
• Reliable operation in demanding networking scenarios.

Compatibility Information

• HPE InfiniBand XDR switches.
• HPE high-performance computing (HPC) environments.
• HPE AI and machine learning clusters.
• HPE Ethernet switches supporting 400GbE QSFP112 interfaces.
• HPE data center networking platforms.
• HPE cloud and hyperscale infrastructure solutions.
• Compatible servers, adapters, and networking equipment supporting 400GbE QSFP112 optics.

Enterprise Deployment Benefits

• Accelerates data-intensive workloads and applications.
• Improves network responsiveness and throughput.
• Supports scalable infrastructure growth strategies.
• Reduces network bottlenecks in high-demand environments.
• Enables efficient communication between compute and storage resources.
• Provides reliable connectivity for AI, HPC, and cloud workloads.
• Helps maximize return on investment in advanced networking infrastructure.

HPE P79931-001 400GbE QSFP112 1-Port Transceiver 

The HPE P79931-001 400GbE QSFP112 1-Port Single-Mode 500m InfiniBand XDR/Ethernet Transceiver is engineered for modern data center environments that demand exceptional bandwidth, low latency communication, and dependable optical connectivity. Designed to support advanced networking infrastructures, this transceiver enables organizations to build scalable, high-performance architectures capable of supporting artificial intelligence workloads, cloud computing platforms, enterprise storage environments, and high-density computing clusters.

Supporting 400 Gigabit Ethernet connectivity, this optical module delivers substantial throughput capacity for environments where large volumes of data must be transmitted efficiently across network segments. The integration of QSFP112 technology provides a compact form factor that enables higher port density while maintaining signal integrity and operational reliability.

Single-mode optical technology enables extended communication distances while preserving consistent transmission quality. The 500-meter reach makes this transceiver suitable for interconnecting switches, routers, storage systems, and compute nodes throughout enterprise facilities and advanced data center deployments. By utilizing fiber optic infrastructure, organizations can minimize electromagnetic interference while maintaining stable network performance.

The module supports both InfiniBand XDR and Ethernet environments, providing deployment flexibility for organizations operating mixed networking infrastructures. This dual-protocol capability simplifies procurement and deployment processes while helping network administrators maintain consistent connectivity standards across multiple application environments.

Advanced 400GbE Optical Connectivity Architecture

Modern enterprise networks continue to experience rapid increases in data traffic generated by virtualization platforms, distributed applications, machine learning frameworks, and cloud-native workloads. The HPE P79931-001 addresses these requirements by delivering a high-speed optical interface capable of handling demanding traffic patterns without compromising reliability.

The 400GbE architecture supports large-scale data transfers between critical infrastructure components. High-bandwidth connectivity allows organizations to reduce bottlenecks, accelerate application performance, and improve overall network responsiveness. This capability becomes increasingly important in environments where multiple servers, storage arrays, and networking devices exchange substantial volumes of information simultaneously.

QSFP112 technology represents a significant advancement in optical networking. The compact design supports increased switch density while enabling efficient airflow and thermal management within networking equipment. Data center operators benefit from greater flexibility when designing high-capacity infrastructures that maximize rack space utilization.

Advanced signal processing mechanisms help ensure reliable communication across supported transmission distances. The transceiver is designed to maintain data integrity under demanding operational conditions while supporting continuous high-speed communication between connected devices.

Bandwidth Optimization for Enterprise Infrastructure

Enterprise organizations require networking solutions capable of supporting rapidly expanding workloads. The 400GbE capability of the HPE P79931-001 provides sufficient bandwidth to support large-scale application environments, virtualization clusters, distributed databases, and next-generation computing platforms.

High-capacity optical connectivity allows data center administrators to consolidate network resources while maintaining excellent performance levels. Increased throughput enables more efficient utilization of available infrastructure resources, reducing congestion and improving communication between critical systems.

Organizations implementing software-defined architectures can leverage high-speed connectivity to improve workload mobility, application responsiveness, and resource allocation efficiency. Enhanced network performance contributes to better user experiences and improved operational productivity.

Single-Mode Fiber Technology Advantages

Single-mode fiber technology offers numerous benefits for modern networking deployments. The HPE P79931-001 utilizes optical transmission methods designed to support long-distance communication while preserving signal quality and transmission consistency.

The 500-meter operational distance provides flexibility for connecting infrastructure components located throughout large facilities. Network architects can design scalable topologies that support future expansion without requiring extensive modifications to existing optical cabling investments.

Single-mode fiber environments often deliver improved transmission efficiency compared to alternative cabling technologies. Reduced signal degradation allows organizations to maintain dependable communication pathways across extended distances while supporting high-speed networking requirements.

Optical communication technologies also provide immunity to electromagnetic interference. This characteristic is particularly valuable in environments containing numerous electronic systems, power distribution equipment, and high-density computing resources.

InfiniBand XDR and Ethernet Compatibility

The ability to support both InfiniBand XDR and Ethernet networking environments provides significant operational flexibility. Organizations frequently operate diverse infrastructure ecosystems containing multiple networking technologies optimized for different workload categories.

InfiniBand environments are widely utilized in high-performance computing deployments, artificial intelligence clusters, scientific research facilities, and advanced analytics platforms. These environments require extremely low latency communication and exceptional throughput performance to maximize computational efficiency.

Ethernet remains a foundational technology across enterprise networking infrastructures worldwide. Supporting Ethernet connectivity allows the transceiver to integrate seamlessly into conventional data center environments while maintaining compatibility with existing networking equipment.

Dual-environment support simplifies deployment planning and infrastructure management. Organizations can standardize on versatile optical modules capable of supporting multiple networking strategies while reducing complexity associated with maintaining separate hardware inventories.

Network Reliability and Durability

Reliable optical communication is fundamental to modern digital infrastructure. The HPE P79931-001 is engineered to support stable data transmission across supported operating conditions, helping organizations maintain dependable connectivity between critical systems.

Consistent network performance contributes to predictable application behavior, improved workload execution, and enhanced user experiences. Data center administrators can implement high-speed optical connectivity with confidence when supporting mission-critical business operations.

Advanced manufacturing standards and rigorous quality considerations help ensure compatibility with enterprise networking environments. Reliable hardware performance supports long-term operational objectives while reducing risks associated with connectivity disruptions.

Enterprise Storage and Cloud Infrastructure 

Storage environments increasingly require high-bandwidth communication to support large datasets, backup operations, replication processes, and real-time analytics workloads. The HPE P79931-001 provides the throughput necessary to facilitate efficient data movement across storage networks.

Cloud infrastructure deployments benefit from scalable networking technologies capable of supporting dynamic workload requirements. High-speed optical connectivity enables rapid resource provisioning and efficient communication between virtualized infrastructure components.

Distributed application architectures often generate significant east-west traffic within data centers. The 400GbE capability helps ensure that communication pathways remain capable of supporting intensive workload interactions without introducing performance constraints.

Organizations implementing private cloud, hybrid cloud, and multi-cloud strategies can leverage advanced optical networking technologies to improve connectivity between critical infrastructure components and support seamless data exchange across complex environments.

Future-Ready Networking Capabilities

The continuing evolution of enterprise technology requires networking solutions capable of supporting future requirements. The HPE P79931-001 provides a foundation for next-generation infrastructure initiatives through its advanced optical design and high-capacity connectivity capabilities.

Emerging technologies including artificial intelligence, advanced analytics, edge computing, and large-scale virtualization continue driving demand for increased bandwidth and reduced latency. High-performance transceivers play an important role in enabling these technologies to operate efficiently.

Organizations investing in modern networking infrastructure can benefit from optical solutions designed to align with evolving data center requirements. Support for high-speed communication, flexible deployment scenarios, and advanced networking standards helps position infrastructure for long-term operational success.

The combination of 400GbE throughput, QSFP112 technology, single-mode fiber support, 500-meter transmission distance, and InfiniBand XDR/Ethernet compatibility makes the HPE P79931-001 a valuable component for high-performance networking environments seeking scalable, reliable, and efficient optical connectivity.