NVIDIA Mellanox 400G OSFP NDR Single-Port SMF DR4 Transceiver

The NVIDIA Mellanox MMS4X00-NM is a 400G OSFP single-port NDR InfiniBand transceiver engineered for single-mode fiber infrastructure using DR4 parallel optics. The module breaks the 400Gb/s aggregate signal into four 100Gb/s lanes transmitted simultaneously over eight single-mode fiber strands (four transmit, four receive) via an MPO-12 interface, enabling data center interconnects that extend beyond the reach limitations of direct-attach copper or active optical cables. Operating at 1310 nm across its four lanes, the transceiver is purpose-built to complement NVIDIA Mellanox NDR 400G InfiniBand switch and adapter hardware.

Designed for high-density, high-performance compute environments, the MMS4X00-NM supports the NDR (Next Data Rate) InfiniBand generation delivering 400Gb/s per port, which doubles the bandwidth available compared to HDR 200G deployments. The OSFP (Octal Small Form-factor Pluggable) form factor accommodates the high lane counts and power requirements of 400G operation while maintaining practical port density in modern switch and host channel adapter lineups. The module integrates digital diagnostics monitoring (DDM/DOM) so network operators can observe real-time optical power levels, temperature, voltage, and bias current without disrupting live traffic.

Target workloads for the MMS4X00-NM include GPU-accelerated deep learning training clusters, high-performance computing (HPC) simulation fabrics, and large-scale storage networking where low-latency, high-throughput InfiniBand connectivity must span intermediate distances across a campus data center or between adjacent buildings. The single-mode DR4 optical design supports link reaches up to 500 meters over OS2 single-mode fiber, making it well-suited for spine-to-leaf topologies or any architecture where multi-mode fiber reach is insufficient and coherent ZR optics are unnecessary overhead.

Ideal for

• Connecting NVIDIA NDR 400G InfiniBand switches to GPU compute nodes across data center rows or buildings where single-mode fiber plant is already deployed
• Building high-bandwidth storage fabric interconnects between NVMe-oF storage arrays and compute clusters requiring sub-microsecond latency at 400Gb/s
• Extending HPC cluster spine-to-leaf links beyond the reach limitations of VCSEL-based multi-mode DR4 optics using existing OS2 single-mode fiber infrastructure
• Scaling AI/ML training fabrics for large language model workloads where all-to-all collective communication demands maximum bisection bandwidth with minimal latency
• Interconnecting multiple InfiniBand islands or pods across a campus data center campus via single-mode fiber runs up to 500 meters
• Replacing copper DAC or active optical cable segments in rack-to-row architectures where port density, reach, and signal integrity require a pluggable single-mode solution

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.