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

NVIDIA MMA4Z00-NS-FLT is an 800Gb/s (Twin-Port 2x400Gb/s) OSFP SR8 multimode parallel optical transceiver designed for high-density AI and data center networking. The "FLT" designation specifies a Flat-Top connector shell, making it ideal for liquid-cooled systems or space-constrained enclosures like the NVIDIA DGX H100, rather than the finned-top variants used in standard air-cooled switches.

NVIDIA MMA4Z00-NS-FLT Optical Transceiver Specifications:

Core Performance
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- Total Data Rate: 800 Gb/s
- Port Configuration: Twin-port (internally 2x 400Gb/s engines)
- Supported Protocols: InfiniBand NDR and High-Speed Ethernet
- Modulation: 8 channels of 100G-PAM4 (electrical and optical)
- Cabling Adaptability: Supports 2x straight 400Gb/s cables or 2x 1:2 splitter fiber cables (200Gb/s)

Optical & Media Specifications
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- Form Factor: Twin-port OSFP (Flat-Top design)
- Wavelength: 850nm
- Transmitter Type: VCSEL (Vertical-Cavity Surface-Emitting Laser)
- Receiver Type: PIN photodiode
- Optical Connector: Two MPO-12/APC (Angled Physical Contact)
- Fiber Type: Multimode Fiber (MMF)
- Maximum Reach:
* 30 meters using OM3 fiber
* 50 meters using OM4 fiber

Electrical & Power Requirements
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- Supply Voltage: Single 3.3V
- Max Power Dissipation: Up to 17 Watts
- Low-Power Sleep Mode: ~1.5 to 2.0 Watts max
- Management Interface: CMIS 4.0 / CMIS 5.0 compliant

Physical & Environmental Bounds
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- Operating Case Temp: 0 deg C to +70 deg C (Commercial range)
- Storage Temperature: -40 deg C to +85 deg C
- Regulatory Compliance: Class 1 laser safety, RoHS, hot-pluggable