Module Types: MMS4A00-XM

Brand: NVIDIA/Mellanox

Transceiver : NVIDIA/Mellanox Original MMS4A00-XM (980-9IAH1-00XM00) Compatible 1.6T Twin-Port OSFP 2xDR4 InfiniBand XDR 2xMPO-12/APC 1310nm 500m SMF EML DOM IHS Finned Top Optical Transceiver Module for Quantum-X800 Switches and DGX B300 Servers

The NVIDIA/Mellanox MMS4A00-XM compatible 1.6Tb/s twin-port OSFP single-mode optical transceiver is engineered specifically for ultra-high-speed XDR 800Gb/s InfiniBand networking and AI data center fabrics. The module integrates two independent 800Gb/s DR4 optical engines (2×DR4). Each engine operates with 4 lanes of 200G-PAM4 signaling, resulting in an electrical configuration of 8 lanes of 200G-PAM4 to deliver high-bandwidth, low-latency connectivity over distances up to 500 meters.

On the optical side, the transceiver provides two DR4 interfaces over two MPO-12/APC connectors, supporting parallel optical transmission over single-mode fiber (SMF). This dual-engine 2×800G architecture enables the Quantum-X800 QM3400 72-cage switch to scale up to 144 ports of 800Gb/s InfiniBand connectivity. Built with an Integrated Heat Sink (IHS / Finned Top) shell, this module meets the rigorous thermal requirements of high-density XDR switch and server environments.

Key Features

• 1.6Tb/s Dual-Engine Architecture: Features two independent 800G DR4 optical engines, enabling seamless 2x800G transmission over single-mode fiber up to 500m.
• High-Performance EML Transmitter: Built with advanced 1310nm EML laser transmitters and PIN receivers for maximum optical signal integrity and reliability.
• Quantum-X800 Density Optimization: Allows Quantum-X800 QM3400 72-cage switches to scale efficiently up to 144 ports of 800Gb/s InfiniBand connectivity.
• Advanced Thermal Design (IHS): Enclosed in an OSFP Integrated Heat Sink (Finned Top) shell engineered specifically for high-density air-cooled switch environments.
• Next-Gen AI & HPC Ready: Optimized for interconnecting 1.6T XDR switches and linking switches directly to NVIDIA DGX B300 servers.

Technical Specifications