MMS4X00-NM Nvidia 800GBPS DR8 500M Twin port OSFP 2x400GBS Single Mode Transceiver

Nvidia MMS4X00-NM DR8 OSFP 2x400GBS Transceiver Overview

The Nvidia MMS4X00-NM 800GBPS DR8 500M Twin Port OSFP 2x400GBS Single Mode Transceiver represents a significant advancement in high-performance optical interconnect technology for hyperscale data centers, enterprise core networks, artificial intelligence clusters, and high-density cloud infrastructure. Engineered to meet the growing demand for ultra-high bandwidth and low-latency connectivity, this 800Gbps DR8 optical module enables seamless data transmission across single-mode fiber for distances up to 500 meters. Designed in the OSFP form factor, it delivers dual 400Gbps connectivity in a single compact module, supporting next-generation networking architectures.

Developed by NVIDIA, a global leader in accelerated computing and high-performance networking solutions, the MMS4X00-NM optical transceiver is purpose-built to integrate with modern 800G-capable switches and network interface cards. It is optimized for environments leveraging NVIDIA Spectrum Ethernet switches and NVIDIA networking platforms, ensuring compatibility, efficiency, and performance across AI-driven data centers and large-scale cloud deployments.

High-Speed 800Gbps Optical Performance

800G DR8 Architecture for Next-Generation Networking

The MMS4X00-NM transceiver operates using the 800G DR8 standard, which stands for 800 Gigabit Data Rate with 8 parallel optical lanes. Each lane operates at 100Gbps using PAM4 modulation, combining to achieve a total aggregate throughput of 800Gbps. This architecture supports massive east-west traffic within data centers and enables ultra-fast data movement between compute clusters, storage arrays, and switching fabrics.

With data center networks increasingly migrating toward 400G and 800G infrastructures, the DR8 standard ensures future-ready compatibility and scalability. By delivering 800Gbps over single-mode fiber up to 500 meters, this transceiver bridges the gap between top-of-rack, spine, and leaf switches while maintaining high signal integrity and minimal bit error rates.

Dual 400Gbps Twin-Port Capability

One of the defining characteristics of the Nvidia MMS4X00-NM is its twin-port OSFP configuration, enabling two independent 400Gbps connections within a single 800G module. This flexible port architecture supports breakout configurations, allowing network engineers to optimize port density and resource allocation across switching environments.

The twin-port functionality is particularly valuable in hyperscale data centers where maximizing rack density and reducing equipment footprint are critical. Instead of deploying multiple discrete transceivers, organizations can leverage a single 800G module to support dual 400G links, improving cable management and reducing operational complexity.

OSFP Form Factor Design and Advantages

Optimized for High-Density Switch Platforms

The OSFP (Octal Small Form-factor Pluggable) design of the MMS4X00-NM ensures high electrical performance and superior thermal management. The OSFP form factor is specifically engineered to support 800G data rates while maintaining efficient power consumption and airflow within dense networking equipment.

Compared to previous generations such as QSFP28 and QSFP-DD, OSFP provides enhanced signal integrity and increased power handling capabilities. This makes it suitable for next-generation 800G Ethernet switches and AI fabric interconnects, particularly those built on advanced switching ASICs.

Enhanced Thermal Performance

At 800Gbps speeds, thermal management becomes a critical factor in maintaining consistent performance. The OSFP housing supports advanced heat dissipation, enabling stable operation even under continuous high-load conditions. This ensures long-term reliability in demanding environments such as high-performance computing clusters and large-scale AI training infrastructures.

Hot-Pluggable Convenience

The MMS4X00-NM module is fully hot-pluggable, allowing network administrators to install or replace transceivers without powering down switches or disrupting operations. This feature is essential in mission-critical environments where uptime and service continuity are paramount.

Single Mode Fiber Connectivity and 500M Reach

DR8 Single Mode Transmission Technology

The Nvidia MMS4X00-NM is engineered for single-mode fiber (SMF) applications, supporting transmission distances up to 500 meters. This extended reach makes it ideal for interconnecting switches across large data halls or campus-scale facilities. Single-mode fiber offers superior bandwidth capabilities and lower attenuation compared to multimode fiber, ensuring reliable signal delivery at ultra-high speeds.

By utilizing parallel single-mode fibers with MPO connectors, the DR8 configuration maintains signal clarity and minimizes crosstalk. This ensures consistent high-performance data transmission across multiple optical lanes simultaneously.

Optimized for Data Center Spine-Leaf Architectures

Modern spine-leaf architectures rely on high-capacity, low-latency links between switching tiers. The 500-meter reach of the MMS4X00-NM enables flexible deployment across expansive facilities, supporting high-bandwidth traffic patterns generated by virtualization, containerized workloads, and AI applications.

Compatibility with NVIDIA Networking Ecosystems

Integration with NVIDIA Spectrum Switches

The MMS4X00-NM transceiver is designed for seamless interoperability with NVIDIA Spectrum Ethernet switches. These switches are widely deployed in high-performance cloud environments and AI data centers. By leveraging native NVIDIA firmware validation and testing, the transceiver ensures optimal performance and compatibility.

Integration with NVIDIA networking platforms guarantees enhanced monitoring capabilities, including digital diagnostics monitoring (DDM) and real-time performance metrics. This enables proactive network management and faster troubleshooting.

Advantages of 800G Over 400G and 100G Technologies

Improved Port Density

By doubling the capacity of 400G modules, 800G transceivers allow network operators to achieve higher bandwidth per rack unit. This improves return on investment by maximizing switch utilization while reducing cabling complexity.

Lower Latency and Higher Efficiency

Consolidating bandwidth into fewer, higher-capacity links reduces network hops and latency. In performance-sensitive applications such as AI model training and real-time analytics, this efficiency translates into measurable gains.