Comprehensive Product Overview

The Mellanox MMA4Z00-NS400 (NVIDIA Quantum-2) is a single-port, hot-pluggable OSFP transceiver optimized for 400Gb/s NDR InfiniBand and 400GbE Ethernet applications. Built with a 7nm DSP and 850nm VCSEL array, it supports 4×100G PAM4 modulation, enabling 400G wire-speed performance with ultra-low power consumption (8.5W max).

This flat-top (no heat sink) OSFP module features an MPO-12/APC optical connector (green housing) for multimode fiber (OM3/OM4), delivering 30m (OM3) and 50m (OM4) reach. It operates as a 200Gb/s NDR200 transceiver with 2-fiber splitter cables, supporting dynamic speed adaptation. Fully compliant with OSFP MSA, CMIS 4.0, IBTA 1.4, and RoHS, it ensures seamless compatibility with NVIDIA ConnectX-7 adapters and Quantum-2 (QM9700/QM9790) switches for end-to-end NDR InfiniBand fabrics.

Key Features & Business Benefits

Key Features

• 400Gb/s NDR InfiniBand + 400GbE: 4×100G PAM4 channels; 400G wire-speed performance。
• Flat-Top OSFP Form Factor: No heat sink; optimized for dense 1U switch port layouts。
• 850nm VCSEL + MPO-12/APC: 30m (OM3) / 50m (OM4) MMF reach; green APC connector。
• Dual-Mode Operation: 400G (4-ch) or 200G (2-ch NDR200); auto-adapts to splitter cables。
• Low Power: 8.5W max (4-ch); 5.5W max (2-ch); 3.3V single supply。
• 7nm DSP + DOM: Digital Optical Monitoring; real-time TX/RX power, temp, voltage。
• Hot-Pluggable & Robust: 0°C to +70°C case temp; Class 1 laser; RoHS compliant。
• NVIDIA Ecosystem Certified: 100% tested for ConnectX-7 and Quantum-2 switches。

Business Benefits

• Accelerate AI/HPC Workloads: 400G NDR InfiniBand + SHARP v3 reduces AI training time by 50%+。
• Maximize Data Center Density: Flat-top OSFP fits 64×400G ports in 1U; saves 70% rack space vs. legacy。
• Lower TCO: 8.5W low power cuts PUE costs; OM4 MMF reduces cabling expenses。
• Simplify Fabric Management: DOM monitoring enables proactive maintenance; reduces downtime。
• Future-Proof Investment: NDR 400G ready; backward compatible with HDR/EDR InfiniBand。
• Guaranteed Compatibility: NVIDIA-certified for end-to-end NDR fabrics; eliminates interoperability risks。

Technical Specifications

Ideal Application Scenarios

• AI/ML Training Clusters: NVIDIA DGX systems with ConnectX-7 and Quantum-2 switches。
• High-Performance Computing (HPC): Supercomputing, scientific simulation, CFD, and quantum computing。
• Cloud & Hyperscale Data Centers: High-density 400G InfiniBand fabrics for HPC/AI cloud services。
• Enterprise Storage: NVMe-oF over InfiniBand for low-latency storage access。
• Research Labs: University and government supercomputing clusters。

Supported Accessories & Modules

• OM3/OM4/OM5 MPO-12/APC Fiber Cables: 30m–50m reach; multimode fiber。
• 2:1 Fiber Splitters: Enable 400G→2×200G NDR200 links。
• ConnectX-7 OSFP Adapters: MCX755A-ECAT (single-port 400G NDR)。
• Quantum-2 Switches: QM9700 (managed) / QM9790 (unmanaged) 64×400G OSFP switches。
• Cable Management: OSFP port dust covers, MPO cable organizers。

Frequently Asked Questions (FAQ)

Q1: What does “flat-top” mean for the OSFP module?

A: It has no integrated heat sink, optimizing airflow in dense 1U switches (e.g., QM9700/QM9790)。

Q2: Can it work with HDR (200G) InfiniBand systems?

A: Yes—auto-adapts to 200G NDR200 mode with 2-fiber splitter cables。

Q3: What fiber type and connector do I need?

A: Use OM4 MMF (MPO-12/APC green connector) for 50m reach; OM3 supports 30m。

Q4: Is it compatible with non-NVIDIA switches?

A: It works with OSFP MSA-compliant switches, but full NDR InfiniBand features require NVIDIA Quantum-2 switches。

Q5: What is the warranty and support?

A: 1-year warranty with NVIDIA technical support; compatible modules may offer extended warranties.