Broadcom Sian3 | BCM83628 Broadcom Sian3 | BCM83628 Item Spotlights
NVIDIA/Mellanox MMS4A20-XM800 Compatible 800G DR4 InfiniBand XDR Optical Transceiver Module (OSFP224, Broadcom 3nm DSP | Sian3 BCM83628, 1310nm, 500m , Single MPO-12/APC, DOM, SMF, RHS/Flat Top)
NADDOD OSFP-800G-DR4H is an 800Gb/s single-mode optical transceiver designed for InfiniBand XDR networks. It is compatible with NVIDIA/Mellanox MMS4A20-XM800 (980-9IAT0-00XM00). The 800G DR4 transceiver operates at a line rate of 200Gb/s per lane using 4 × 200Gb/s PAM4 modulation, delivering high-speed, low-latency connectivity. For physical connectivity, OSFP-800G-DR4H supports link distances of up to 500 meters over single-mode fiber (SMF) using a DR4 optical architecture, delivering an aggregate bandwidth of 800Gb/s.
With an integrated advanced 3nm DSP, the 800G OSFP DR4 transceiver delivers ultra-low bit error rates (BER), robust signal integrity, and high end-to-end link reliability at 800G speeds. Silicon photonics technology further enhances integration density and energy efficiency. This transceiver is optimized for liquid-cooled systems based on the NVIDIA GB200 architecture, linking Quantum-X800 QM3x00 switches with ConnectX-8 dual 800Gb/s mezzanine cards via high-density 800G optical interconnects.
Leveraging the synergy between Broadcom's 3nm DSP and self-developed SiPh chip, the 800G transceiver delivers low latency, superior performance, and robust stability for 800G XDR interconnects. With 15W power consumption, 2E-11 BER, and 500m single-mode transmission reach, it ensures full-speed, reliable transmission even across long inter-rack distances or complex node layouts, thereby lowering power consumption and boosting overall cluster efficiency.
The 800G transceiver is compatible with DGX GB300, B200, HGX, and other mainstream high-density GPU servers, fully releasing the computing power of each GPU node and comprehensively boosting overall cluster performance. Ideal for AI, HPC, and large-scale inference tasks, it features high-speed, low-latency links that ensure seamless communication—activating maximum cluster throughput and resource utilization to deliver an efficient, reliable, and scalable computing infrastructure solution for customers.
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