OSFP-400G-DR4 Arista 400G 1310nm 500m SMF Transceiver

Product Overview of Arista OSFP-400G-DR4 Optical Transceiver

The Arista OSFP-400G-DR4 400G DR4 QSFP-DD PAM4 1310nm 500m DOM MTP/MPO-12 APC SMF Optical Transceiver is a high-speed plug-in module designed for advanced networking environments. It delivers reliable 400 Gigabit Ethernet connectivity with superior performance and efficiency.

General Information

• Manufacturer: Arista
• Part Number: OSFP-400G-DR4
• Product Type: Optical Transceiver

Technical Specifications

• Form Factor: Plug-in Module
• Cable Type: Ethernet 400GBASE-DR4
• Connectivity Technology: Wired
• Data Link Protocols: 400 Gigabit Ethernet
• Data Transfer Rate: 400 Gbps
• Maximum Transfer Distance: 1640 ft (500m)

Connectivity Options

• Interface: 1 x Ethernet 400GBASE-DR4 - MPO-12 Single-mode

Performance Highlights

• Delivers ultra-fast 400Gbps data transmission
• Optimized for long-distance fiber optic communication
• Supports advanced PAM4 modulation for higher bandwidth

Reliability and Compatibility

• Designed for enterprise-grade networking infrastructure
• Compatible with single-mode fiber (SMF) cabling
• Ensures consistent performance across large-scale deployments

Arista OSFP-400G-DR4 400G DR4 PAM4 Optical Transceiver

The Arista OSFP-400G-DR4 400G DR4 QSFP-DD PAM4 1310nm 500m DOM MTP/MPO-12 APC SMF Optical Transceiver is engineered to support ultra-fast Ethernet connectivity in modern enterprise networks, hyperscale cloud infrastructures, carrier-grade platforms, and advanced data center environments. Designed for high-bandwidth applications, this 400G optical module delivers exceptional throughput, low latency, reliable signal integrity, and long-distance transmission capabilities over single-mode fiber infrastructure.

Built with PAM4 modulation technology and advanced optical engineering, this transceiver provides stable 400 Gigabit Ethernet performance while maintaining efficient power utilization. The DR4 architecture supports parallel single-mode fiber transmission using MTP/MPO-12 APC connectivity, making the module highly suitable for spine-and-leaf architectures, AI clusters, cloud computing platforms, storage networks, and next-generation aggregation environments.

The module operates at a wavelength of 1310nm and supports transmission distances up to 500 meters over SMF cabling. With integrated Digital Optical Monitoring functionality, network administrators can continuously monitor optical health metrics, helping maintain optimal network stability and operational efficiency.

400G Ethernet Technology for Modern Data Centers

Growing Demand for 400G Infrastructure

Modern digital infrastructures continue to experience dramatic increases in traffic volumes due to virtualization, cloud-native applications, artificial intelligence workloads, machine learning processing, big data analytics, and distributed storage environments. Traditional 10G, 25G, 40G, and even 100G connections are no longer sufficient for many large-scale deployments.

The Arista OSFP-400G-DR4 transceiver addresses these challenges by enabling high-density 400G connectivity that significantly improves network scalability and bandwidth efficiency. Organizations deploying high-performance computing clusters and cloud-scale architectures benefit from the enormous data transfer capacity offered by 400 Gigabit Ethernet technology.

Enhanced Network Throughput

By supporting 400G Ethernet transmission, the transceiver enables dramatically higher throughput between switches, routers, storage arrays, and compute nodes. This increased bandwidth helps reduce congestion in high-traffic environments while supporting latency-sensitive applications that require fast and reliable communication.

Large-scale virtualization environments also benefit from higher port density and improved bandwidth allocation, enabling better workload balancing and faster application response times. The module is optimized for environments where continuous data movement and low-latency switching are essential operational requirements.

Optimized for Cloud and Hyperscale Deployments

Hyperscale cloud operators require optical networking solutions capable of maintaining high performance across thousands of interconnected devices. The Arista 400G DR4 optical transceiver supports these requirements with reliable optical signaling, advanced PAM4 modulation, and stable single-mode fiber communication.

Its compatibility with dense networking environments allows operators to simplify cable management while maximizing bandwidth per rack unit. The compact QSFP-DD form factor also enables improved scalability in high-density switch deployments.

QSFP-DD Form Factor Advantages

High-Density Network Architecture

The QSFP-DD form factor is designed to support double-density electrical interfaces while maintaining backward compatibility with earlier QSFP technologies in many networking ecosystems. This enhanced density enables data centers to deploy significantly more bandwidth within the same physical switch footprint.

As data centers evolve toward higher performance computing models, space efficiency becomes increasingly important. The QSFP-DD architecture supports greater network scalability while reducing rack space consumption and infrastructure complexity.

Efficient Airflow and Thermal Design

Efficiency in thermal management is critical in modern networking environments. The Arista OSFP-400G-DR4 module incorporates advanced thermal engineering that supports stable operation even under demanding traffic conditions. Optimized airflow characteristics contribute to improved hardware longevity and stable network performance.

Data centers with high port density often face cooling challenges. The compact design of QSFP-DD optics allows improved airflow circulation while maintaining high-speed optical performance and reduced power consumption.

Support for Scalable Switching Platforms

Enterprise and cloud networking platforms require transceivers that can scale alongside evolving bandwidth requirements. The QSFP-DD architecture enables networking equipment manufacturers to deliver ultra-high-density switching solutions capable of supporting multiple 400G interfaces within compact hardware platforms.

This scalability supports future-ready infrastructure planning while allowing organizations to expand network capacity without extensive redesign of their existing data center layouts.

PAM4 Signaling Technology

Improved Data Transmission Efficiency

PAM4 modulation technology enables significantly higher data rates by transmitting two bits per symbol instead of one. This advanced signaling mechanism improves bandwidth efficiency while reducing the need for additional physical lanes.

The Arista OSFP-400G-DR4 transceiver utilizes PAM4 technology to achieve reliable 400G communication over single-mode fiber infrastructure. This advanced modulation method is essential for enabling next-generation Ethernet standards in modern data centers.

Lower Infrastructure Complexity

By utilizing PAM4 signaling, organizations can achieve higher transmission speeds without dramatically increasing cable complexity or infrastructure requirements. This approach simplifies deployment while helping reduce overall networking costs.

Reduced cabling complexity also contributes to better airflow management, easier maintenance, and improved network organization within large-scale deployments.

Support for Emerging Technologies

Artificial intelligence systems, machine learning clusters, and high-performance storage environments generate enormous data traffic volumes that require advanced networking technologies. PAM4 signaling supports these demanding applications by delivering higher throughput and improved spectral efficiency.

As organizations continue adopting data-intensive workloads, PAM4-based optical transceivers become increasingly important for maintaining competitive network performance and operational scalability.

1310nm Optical Wavelength Performance

Reliable Single-Mode Fiber Communication

The 1310nm wavelength is widely recognized for its stable transmission properties in single-mode fiber applications. The Arista 400G DR4 transceiver leverages this wavelength to provide consistent optical performance across distances up to 500 meters.

Single-mode fiber communication offers lower attenuation and improved signal quality compared to multimode alternatives in longer-distance deployments. This makes the module suitable for interconnects between data center rows, aggregation layers, and distributed computing clusters.

Reduced Signal Loss

Signal attenuation can significantly impact network reliability and data integrity. Operating at 1310nm helps minimize optical loss and maintain stable communication across high-speed links. This contributes to improved packet delivery accuracy and reduced transmission errors.

Organizations requiring dependable high-speed connectivity benefit from the enhanced signal stability offered by the 1310nm operating wavelength.

Ideal for High-Speed Enterprise Infrastructure

Large enterprises deploying advanced Ethernet infrastructures often require dependable long-range optical communication. The 1310nm wavelength supports these requirements while maintaining compatibility with standard single-mode fiber environments.

The technology is particularly valuable in enterprise campuses, cloud service environments, and colocation facilities where scalable optical networking infrastructure is essential.

DR4 Optical Architecture

Parallel Fiber Transmission

DR4 architecture utilizes parallel optical lanes to achieve ultra-high data transmission speeds. The Arista OSFP-400G-DR4 transceiver employs four optical transmit lanes and four receive lanes operating at 100Gbps each to deliver a total throughput of 400Gbps.

This parallel transmission method ensures efficient bandwidth utilization while supporting stable high-speed communication in demanding networking environments.

MTP/MPO-12 APC Connectivity

The module uses MTP/MPO-12 APC connectors that support high-density fiber connectivity and efficient cable management. APC polishing helps minimize back reflection, contributing to improved optical performance and signal quality.

High-density MPO connectivity is particularly valuable in large-scale data centers where efficient cable organization and rapid deployment are critical operational requirements.

Enhanced Signal Integrity

Maintaining signal integrity at 400G speeds requires advanced optical engineering and precise transmission control. The DR4 architecture helps ensure reliable data delivery while minimizing errors and transmission instability.

Improved signal integrity contributes to reduced packet loss, consistent latency performance, and higher overall network reliability in mission-critical environments.

Digital Optical Monitoring Capabilities

Digital Optical Monitoring technology provides administrators with access to critical operational metrics such as temperature, voltage, optical power levels, and laser bias current. These monitoring capabilities help maintain stable network performance and simplify troubleshooting procedures.

Continuous monitoring enables proactive maintenance strategies that reduce downtime and improve infrastructure reliability.

Improved Network Visibility

DOM functionality enhances operational visibility by allowing administrators to track transceiver health in real time. Early detection of optical degradation or environmental changes helps prevent network disruptions before they impact production workloads.

Improved visibility also supports faster diagnostics and more efficient network management processes.

Support for Predictive Maintenance

Predictive maintenance strategies are increasingly important in modern data centers. By monitoring optical metrics continuously, organizations can identify potential failures before they occur and schedule maintenance activities more effectively.

This proactive approach helps reduce operational interruptions while extending the lifespan of critical networking components.

Single-Mode Fiber Infrastructure Benefits

Longer Transmission Distances

Single-mode fiber technology supports longer transmission distances with minimal signal degradation compared to multimode alternatives. The Arista 400G DR4 transceiver supports up to 500 meters over SMF infrastructure, making it ideal for large-scale deployments.

This extended reach enables flexible network design and efficient interconnection between distributed infrastructure components.

Future-Ready Fiber Cabling

Organizations investing in single-mode fiber infrastructure benefit from improved scalability and long-term compatibility with emerging networking standards. SMF cabling supports future bandwidth upgrades while maintaining reliable optical performance.

Future-ready infrastructure planning helps organizations reduce long-term upgrade costs and simplify network evolution.

Reduced Electromagnetic Interference

Optical fiber communication is inherently resistant to electromagnetic interference, ensuring stable data transmission in electrically noisy environments. This advantage contributes to improved reliability and signal consistency in mission-critical applications.

Industries with demanding environmental conditions often rely on optical networking solutions for dependable high-speed connectivity.

Applications in Modern Networking Environments

Cloud Computing Platforms

Cloud service providers require high-capacity networking infrastructure capable of supporting massive data movement between compute, storage, and networking layers. The Arista OSFP-400G-DR4 transceiver enables high-speed connectivity essential for cloud scalability and operational efficiency.

Its support for high-density Ethernet environments makes it well suited for modern cloud architectures and distributed computing ecosystems.

Artificial Intelligence and Machine Learning

AI and machine learning workloads generate enormous east-west traffic within data centers. High-bandwidth optical interconnects are necessary to support rapid data exchange between GPU clusters, storage systems, and compute nodes.

The 400G DR4 optical transceiver helps ensure low-latency communication and efficient workload processing for AI-driven infrastructures.

Enterprise Data Centers

Large enterprise environments rely on high-speed optical connectivity to support virtualization, database replication, storage networking, and business-critical applications. The Arista 400G transceiver enables enterprises to improve network efficiency while preparing for future growth.

Its combination of high bandwidth, reliable optical signaling, and scalable architecture makes it an ideal solution for enterprise network modernization projects.

Telecommunications Infrastructure

Telecommunications providers require dependable high-capacity networking technologies for backbone aggregation and service delivery platforms. The Arista DR4 optical module supports these environments by providing stable high-speed optical communication across carrier-grade infrastructure.

Its advanced optical characteristics help ensure reliable service performance in demanding telecom deployments.

Energy Efficiency and Operational Optimization

Reduced Power Consumption

Modern data centers prioritize energy efficiency to control operational expenses and reduce environmental impact. The Arista OSFP-400G-DR4 transceiver is designed with optimized power characteristics that help reduce overall energy consumption while maintaining ultra-fast network performance.

Efficient optical modules contribute to lower cooling requirements and improved sustainability across large-scale networking environments.

Improved Rack Utilization

Higher-density networking technologies enable organizations to maximize rack utilization while reducing hardware sprawl. The compact QSFP-DD form factor supports greater bandwidth concentration within limited physical space.

Improved rack efficiency helps organizations optimize data center layouts and reduce infrastructure expansion costs.

Compatibility and Network Integration

Integration with High-Performance Switching Platforms

The Arista OSFP-400G-DR4 optical transceiver is engineered for seamless integration with advanced Ethernet switching platforms designed for hyperscale and enterprise environments. Compatibility with modern 400G networking equipment ensures stable deployment and reliable operational performance.

Organizations deploying next-generation switching architectures benefit from simplified integration and consistent interoperability across their networking ecosystem.

Support for Ethernet Standards

Compliance with industry-standard Ethernet specifications helps ensure broad compatibility and reliable communication across multi-vendor networking environments. Standards-based deployment simplifies infrastructure planning and improves long-term scalability.

Standardized optical networking technologies also reduce integration risks and support predictable performance across interconnected systems.

Scalable Migration Path

As organizations transition from 100G and 200G networking environments toward 400G architectures, scalable optical transceivers become essential components of the migration process. The Arista OSFP-400G-DR4 module supports smooth infrastructure evolution while enabling dramatic increases in bandwidth capacity.

This scalable migration path helps organizations modernize their networks efficiently while minimizing operational disruption and infrastructure replacement costs.