Module Types: OSFP-400G-2xSR4H

Brand: NVIDIA/Mellanox Compatible / Generic

Transceiver : NVIDIA/Mellanox Compatible 400GBASE-2xSR4 / InfiniBand HDR OSFP Finned Top Optical Transceiver Module, 850nm VCSEL Transmitter, PIN Receiver Array, Up to 50m Reach over OM4 MMF (30m over OM3), Dual MPO-12/APC or Dual MTP-12 APC Connector, DOM/DDM Support, 8x50Gb/s PAM4 Electrical/Optical Modulation, Max Power Consumption ≤14W

The NVIDIA/Mellanox Compatible 400G 2xSR4 OSFP Finned Top Optical Transceiver Module is an eight-channel, parallel, pluggable fiber-optic module designed for ultra-high-density High-Performance Computing (HPC), AI supercomputing, and 400G enterprise cloud data center networks. Utilizing 8 independent 50Gb/s PAM4 optical lanes at an 850nm wavelength, this transceiver delivers up to 400Gbps aggregate throughput over multimode fiber (MMF).

Featuring an integrated Finned Top (IHS) heat sink design and Dual MPO-12/APC (Angled Physical Contact) connectors, this OSFP module ensures optimal thermal dissipation in air-cooled switch chassis while minimizing optical back-reflection. It fully complies with InfiniBand HDR protocols, OSFP MSA standards, CMIS 4.0, IEEE 802.3cm, and 400G Ethernet specifications. Equipped with Digital Diagnostic Monitoring (DOM/DDM) via the I2C interface, it allows real-time tracking of operating temperature, supply voltage, laser bias current, and transmit/receive optical power. It is 100% verified for seamless compatibility with NVIDIA Quantum-2 QM9700 / QM9790 InfiniBand Switches.

Key Features

• High-Density 400G PAM4 Performance: Combines 8x50Gb/s (26.5625 GBd) PAM4 lanes to achieve an aggregated 400Gbps throughput with ultra-low latency.
• Finned Top Thermal Architecture: Built-in finned top heat sink provides superior thermal management for high-density air-cooled switch chassis.
• Dual MPO-12 APC Interface: Utilizes dual angled physical contact MPO-12 optical connectors to optimize link reflection performance and optical density.
• Multimode Fiber Reach: Supports short-range interconnect links up to 50 meters over OM4 MMF and up to 30 meters over OM3 MMF using standard 850nm VCSEL technology.
• Real-Time Digital Diagnostics (DOM): Built-in DDM functionality continuously monitors voltage, temperature, bias currents, and optical power with configurable thresholds.
• 100% Hardware Interoperability: Built to OSFP MSA and CMIS 4.0 specifications, fully compliant with IBTA Industrial BER standards and RoHS protocols.

Technical Specifications