NVIDIA MMS4X00‑NS‑T 800Gbps Twin-Port OSFP Single-Mode SMF Transceiver, 2×400GbE, 1310nm, Up to 100m

NVIDIA MMS4X00-NS-T is a high-performance 800 Gb/s twin-port OSFP DR4 transceiver designed for next-generation data-centre interconnects. It delivers 2 × 400G over single-mode fibre (SMF) using 1310 nm optics, making it ideal for spine-leaf, switch-to-switch, and high-capacity fabric uplinks. Its finned-top OSFP design ensures enhanced thermal performance, supporting NVIDIA Spectrum-4 switches and other 800G-ready platforms. Built for reliability, it offers up to 100 m reach, CMIS-based monitoring, and Class-1 laser safety.

KEY FEATURES:

• Form Factor: Twin-port OSFP 800G transceiver
  
• Per-Port Speed: 400Gb/s DR4 (4 × 100G PAM4)
  
• Optical Wavelength: 1310nm single-mode
  
• Maximum Reach: Up to 100m over SMF
  
• Connector Type: Dual MPO-12/APC (one per 400G port)
  
• Thermal Design: Finned-top OSFP for improved heat dissipation
  
• Protocol Support: Ethernet 400G DR4 / InfiniBand NDR compatible
  
• Diagnostics: CMIS 4.0 digital monitoring support
  
• Safety Compliance: Class 1 laser, hot-pluggable
  
• Ecosystem Compatibility: NVIDIA Spectrum-4, ConnectX-7, BlueField-3, Quantum-2 platforms

TECHNICAL SPECIFICATIONS:

APPLICATIONS:

• ConnectX‑7 / OSFP adapters in servers and AI systems for high-speed 400G/800G connectivity.
• Quantum‑2 InfiniBand and Spectrum‑4 Ethernet switches in data center spine or leaf fabrics for ultra-high-bandwidth links.
• Single-mode DR4 links for long-reach connections up to 100 m in HPC clusters, AI workloads, and cloud data centers.
• High-density server racks and GPU nodes requiring compact, finned-top OSFP modules for efficient 800G deployment and reliable thermal performance.
• Dense 800G switch-to-switch interconnects in large-scale AI, ML, and deep learning training clusters.
• Rack-scale hyperconverged infrastructures where low-latency, high-throughput optical links are critical for GPU and storage fabrics.
• Enterprise and hyperscale cloud data centers implementing 400G/800G DR4 fabrics for scalable spine-leaf network architectures.
• Mission-critical production environments that require hot-swappable modules with CMIS-based monitoring for operational reliability.
  

ADVANCED FEATURES:

Twin-Port 800G Connectivity:

The MMS4X00‑NS‑T delivers two independent 400G DR4 channels in a single OSFP module, providing an aggregate bandwidth of 800G. This high-density connectivity reduces the total number of ports required while maximizing throughput, making it ideal for modern rack-scale data centers. It ensures efficient utilization of available switch and server interfaces, simplifying network design and expansion.

High-Speed PAM4 Modulation:

Each port uses 100G PAM4 modulation across 8 optical lanes, offering extremely high data density and network efficiency. This capability allows seamless integration with 400G Ethernet DR4 and InfiniBand NDR networks, supporting high-performance computing clusters, AI/ML workloads, and latency-sensitive applications. It ensures reliable, low-error data transmission even under maximum traffic loads.

Single-Mode Long-Reach Support:

Designed for up to 100 meters over single-mode fiber, the module supports long-reach spine-to-leaf and inter-rack connections in large-scale data centers. Its engineered optical design ensures low latency, minimal signal loss, and high integrity across extended distances. This makes it suitable for hyperscale deployments and distributed high-performance computing environments.

Hot-Pluggable OSFP Form Factor:

The MMS4X00‑NS‑T is fully hot-swappable, allowing installation or replacement without powering down the host system. CMIS 4.0 support provides real-time monitoring of key parameters like optical power, temperature, and voltage, enabling predictive maintenance and operational reliability. This flexibility reduces downtime and simplifies network upgrades in production environments.

Finned-Top Thermal Design:

The module’s integrated finned-top heatsink ensures effective heat dissipation in high-density 800G environments. It provides stable operation even under heavy GPU-intensive AI workloads or fully loaded data center fabrics. This thermal optimization enhances module longevity and reduces the need for additional cooling infrastructure.

Flexible Low-Power Mode:

The MMS4X00‑NS‑T can operate in 200G mode using a 1:2 optical splitter, significantly lowering power consumption when full 400G bandwidth is not needed. This feature allows data centers to optimize energy efficiency without compromising performance, making it suitable for dynamic workloads and cost-conscious operations.

Protocol Flexibility:

Fully compatible with 400G Ethernet DR4 and InfiniBand NDR, the module can adapt to multiple high-performance networking protocols. This versatility makes it ideal for AI/ML clusters, HPC workloads, and cloud infrastructures where heterogeneous networking environments are common. It simplifies network planning and ensures interoperability with existing hardware.

Reliable and Safe Operation:

Class 1 eye-safe lasers comply with international safety standards, ensuring secure operation in data center environments. The robust OSFP construction offers durability and consistent performance under demanding conditions. This reliability supports mission-critical applications and reduces maintenance costs over the module’s lifecycle.

ORDERING INFORMATION:

WARRANTY & SUPPORT:

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