Optech NVIDIA/Mellanox MMS4A00-Compatible 1.6T OSFP DR8 Transceiver

SiPh-Based, Broadcom 3nm DSP, 1310nm 500m, Dual MPO-12/APC, for Quantum-X800 Air-Cooled & Liquid-Cooled Switches

As AI clusters and HPC fabrics push beyond 800G per port, network architects need a clean, power-efficient path to 1.6T InfiniBand XDR—without compromising interoperability, density, or thermal headroom. The Optech 1.6T OSFP DR8 optical transceiver is engineered to be NVIDIA/Mellanox MMS4A00 (980-9IAH1-00XM00) compatible, delivering robust 1.6T PAM4 performance with SiPh-based optics and a built-in Broadcom 3nm DSP, validated for NVIDIA Quantum-X800 platforms in both air-cooled and liquid-cooled switch environments.

Built for Quantum-X800: Compatibility You Can Deploy with Confidence

Optech’s 1.6T DR8 OSFP is designed for seamless operation in NVIDIA Quantum-X800 switches—covering both closed finned-top / IHS thermal designs required by modern, high-density chassis.

Key platform alignment includes:

  • Perfect compatibility with NVIDIA Quantum-X800 air-cooled and liquid-cooled switches

  • NVIDIA/Mellanox MMS4A00 (980-9IAH1-00XM00) compatibility for simplified qualification and deployment

  • DGX GB300/B300 solution architecture compatibility, enabling 1.6T switch ports to connect to dual 800G NICs cleanly in next-generation GPU fabrics

Broadcom 3nm DSP Inside: Performance, Reach, and Signal Integrity

At 1.6T, link margin and system stability depend heavily on DSP capability. This module integrates a Broadcom 3nm DSP chip, enabling advanced equalization and PAM4 processing for dependable DR8 operation across demanding HPC backplanes and cabling layouts.

Highlights:

  • Built-in Broadcom 3nm DSP for PAM4 optimization and system-level robustness

  • Designed for modern InfiniBand XDR requirements where stability and latency consistency matter

SiPh-Based Optics: Lower Power, Lower Cost, Higher Density

Optech uses Silicon Photonics (SiPh) technology to reduce optical complexity, enabling improved manufacturability and power efficiency—critical for dense 1.6T deployments where every watt impacts rack design, airflow, and cooling cost.

Benefits of SiPh-based architecture:

  • Lower power and cost at scale versus legacy approaches

  • Supports higher front-panel density and improved thermal manageability

  • Optimized for next-gen AI fabrics where link counts rise rapidly

Power Efficiency for Real Systems: Max 25W

1.6T optics must operate within strict thermal envelopes. The Optech 1.6T DR8 module is designed with a maximum power consumption of 25W, helping maintain stability in dense switch configurations—especially important for mixed air-cooled and liquid-cooled deployments.

  • Max. power consumption: 25W

  • Built for closed finned-top / IHS OSFP mechanical and thermal constraints

Architecture: 8×200G Electrical to Dual 4×200G Optical Parallel

This DR8 design supports high-throughput parallel optics tailored for modern leaf/spine and GPU fabric connectivity.

  • 8×200G-PAM4 electrical interface (host side)

  • Dual 4×200G-PAM4 optical parallel output

  • Optimized for HPC and Machine Learning (ML) architectures requiring deterministic, high-bandwidth connectivity

Optical Specs for AI Fabrics: 1310nm, 500m, DOM/DDM

For short-reach, high-density data center interconnect inside AI pods, the module provides:

  • Wavelength: 1310nm

  • Reach: up to 500m over SMF

  • DOM/DDM support for real-time monitoring (temperature, voltage, Tx/Rx power, alarms)

Dual MPO-12/APC Connectivity: Clean Cabling at Scale

Cabling simplicity becomes a deployment advantage at thousands of links. The module supports:

  • Dual MPO-12/APC interface

  • Single-Mode Fiber (SMF) for stable, scalable fabric builds

Standards & Compliance

The Optech 1.6T DR8 OSFP is engineered to align with industry and regulatory requirements:

  • Hot Pluggable OSFP MSA

  • IEEE 802.3dj compliance

  • RoHS compliant

  • Class 1 laser safety

  • DDM (Digital Diagnostic Monitoring) supported

Use Cases

Ideal deployments include:

  • NVIDIA Quantum-X800 XDR InfiniBand fabrics for AI/HPC clusters

  • DGX GB300/B300-aligned architectures, supporting 1.6T switch to 2×800G NIC connectivity

  • High-density data centers requiring air-cooled and liquid-cooled compatibility

  • Large-scale training clusters where power efficiency and port density define TCO

Summary: Why This 1.6T DR8 Module Fits Next-Gen XDR Networks

Optech’s NVIDIA/Mellanox MMS4A00-compatible 1.6T OSFP DR8 brings together the essentials for production AI fabrics: Broadcom 3nm DSP, SiPh-based lower-power optics, 25W max power, verified compatibility with Quantum-X800, and standards compliance—all in a hot-pluggable OSFP form factor designed for modern thermal environments.