NVIDIA MMA4Z00-NS 800Gb/s Twin-port OSFP SR8 Optical Transceiver

1. Product Overview

The NVIDIA MMA4Z00-NS is an 800Gb/s twin-port OSFP optical transceiver designed for high-performance data center and enterprise networking. It supports 2x400Gb/s multimode SR8 connectivity with a reach of up to 50 meters using OM4 fiber. This transceiver is engineered for use in NVIDIA Quantum-2 and Spectrum-4 switches, providing seamless integration for both InfiniBand and Ethernet protocols. It features a finned-top design for enhanced thermal management in air-cooled systems.

2. Key Characteristics

• Dual-port 800G SR8 multimode transceiver with 2x MPO-12/APC connectors
• Supports 100G-PAM4 modulation per lane
• Hot-pluggable, RoHS compliant, and Class 1 laser safe
• Low-power sleep mode (2.0W) and max power consumption of 17W
• Operating case temperature: 0°C to 70°C

3. Technology & Standards

The transceiver complies with OSFP MSA Rev. 1.12 and CMIS 4.0 management interface. It uses 850nm VCSEL technology and supports digital diagnostic monitoring (DDM) for real-time performance tracking. The device is also compatible with IEEE and InfiniBand standards.

4. Working Principle

The MMA4Z00-NS utilizes eight multimode fibers (4 Tx, 4 Rx per port) to transmit and receive 100G-PAM4 signals. Each port operates independently, enabling flexible connectivity options. The integrated microcontroller monitors key parameters such as temperature, voltage, and optical power, ensuring reliable operation.

5. Applications

• Data center spine-leaf architectures
• High-performance computing (HPC) clusters
• AI and machine learning infrastructure
• Cloud service provider networks
• Enterprise core and aggregation switching

6. Specifications

7. Advantages & Selling Points

• Dual-port design doubles port density in switch systems
• Automatic protocol detection (InfiniBand or Ethernet)
• Low latency and high reliability for critical applications
• Robust thermal management with finned-top design
• Supported by NVIDIA end-to-end validation and warranty

8. Service & Support

We offer 24/7 technical support, worldwide shipping, and a full warranty on all products. Our team provides pre-sales consultation and post-sales integration assistance to ensure seamless deployment.

9. Frequently Asked Questions

Q: What is the difference between finned-top and flat-top versions?
A: Finned-top is for air-cooled switches; flat-top is for liquid-cooled or DGX-H100 systems.

Q: Can I use single-mode fibers with this transceiver?
A: No, the MMA4Z00-NS is designed for multimode fiber only.

Q: Does it support splitter cables for 200G operation?
A: Yes, with 1:2 splitter cables, each port can support two 200G connections.

10. Precautions

• Use only NVIDIA-compatible MPO-12/APC optical fiber cables.
• Avoid mixing straight and splitter cables in the same transceiver.
• Ensure proper cleaning of optical connectors before insertion.
• Do not exceed maximum operating temperature and power ratings.

11. Company Introduction

With over a decade of industry experience, we operate a large-scale facility supported by a strong technical team. We represent leading brands including Mellanox, Ruckus, Aruba, and Extreme. Our product portfolio includes original new network switches, network adapters, wireless access points, controllers, and passive fiber cables. We maintain a $10 million inventory to support bulk orders and provide 24/7 customer service and technical support. Our professional sales and engineering teams have earned a global reputation for reliability and excellence.