Module Types: OSFP-1.6T-2xDR4H-COMP

Brand: NVIDIA/Mellanox

Transceiver : NVIDIA/Mellanox MMS4A00-XM / MMS4C10-XM (980-9IAH1-00XM00 / 980-9IAU0-00XM01) Compatible 1.6T 2xDR4 OSFP224 IHS/Closed Finned Top 8x200G PAM4 Broadcom 3nm DSP (Sian3 | BCM83628) 1310nm 500m SMF DOM Dual MPO-12/APC InfiniBand XDR Optical Transceiver Module for Quantum-X800 Air-Cooled Switches

The NVIDIA/Mellanox compatible 1.6T OSFP224 2xDR4 InfiniBand XDR Optical Transceiver Module is purpose-built for next-generation InfiniBand XDR and high-speed Ethernet data center interconnects. Featuring a 1.6Tb/s dual-port OSFP224 design with a parallel single-mode optical architecture, it supports 2x800G DR4 transmission over eight parallel single-mode fibers. Each 800G port operates with 4x200G-PAM4 lanes, delivering reliable high-speed data transmission with a maximum reach of up to 500 meters, making it ideal for short-reach intra-data center deployments.

The 1.6T OSFP 2xDR4 transceiver integrates two independent 4-lane optical engines, each terminated with an MPO-12/APC connector, providing a total of eight parallel optical lanes. Powered by the Broadcom 3nm Sian3 DSP (BCM83628), this module features advanced PAM4 signal conditioning and link robustness with ultra-low bit error rates (BER). It is specifically designed for high-density connectivity between NVIDIA Quantum-X800 air-cooled switches, forming the optical foundation of InfiniBand XDR AI and HPC data center fabrics.

Key Features

• Broadcom 3nm Sian3 DSP (BCM83628): Delivers advanced PAM4 signal conditioning, power efficiency, and stable low-latency performance required for demanding AI workloads.
• 1.6Tb/s High-Density Twin-Port Architecture: Supports 2x800G DR4 transmission over parallel single-mode fiber (SMF) via dual MPO-12/APC optical connectors.
• Advanced Silicon Photonics Technology: Integrates a 1310nm SiPh MZM transmitter paired with high-sensitivity PIN receivers for enhanced link reliability.
• Thermal-Optimized OSFP224 Design: Built with an IHS/Closed Finned Top heat sink tailored for optimal airflow in air-cooled switch environments.
• Power-Efficient Operation: Maximizes front-panel port density while maintaining strict power budgets with an operating consumption of ≤25W.

Technical Specifications