980-9IAH0-00XM00 | OSFP-1.6T-2DR4FH | Transceiver
1.6T OSFP224 2xDR4 500m Transceiver with 1 exact SKU option. Confirm the host, port and firmware before quotation.
InfiniBand Interconnects
Catalog reference: NVIDIA/Mellanox Coding Target MMS4A50-XM (980-9IAS0-00XM00) Compatible 1.6T 2xFR4 OSFP224 IHS/Closed Finned Top 8x200G PAM4 Broadcom 3nm DSP (Sian3| BCM83628) 1310nm 2km SMF DOM Dual LC Duplex InfiniBand XDR Optical Transceiver Module for Quantum-X800 Air-Cooled Switches
The part numbers on this page identify the requested coding target. Confirm the exact host model, port and firmware for the selected SKU.
NVIDIA/Mellanox Coding Target MMS4A50-XM (980-9IAS0-00XM00) is a 1.6T 2x800Gb/s Twin-port OSFP, 2xFR4 single mode, multiplexed, 8-channel transceiver using two, 2-fiber, LC Duplex optical connectors each carrying 4-channels of 200G-PAM4. Powered by Broadcom 3nm DSP (Sian3| BCM83628) and self-developed silicon photonics chips, it is designed to link NVIDIA Quantum-X800 air-cooled switches.
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Review boundary: These identifiers reproduce source catalog matching terms only; they do not establish interoperability, approval or endorsement. Confirm the exact host model, port type, firmware and test evidence before use.
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NVIDIA/Mellanox Coding Target MMS4A50-XM (980-9IAS0-00XM00) Compatible 1.6T OSFP224 2xFR4 IHS/Closed Finned Top InfiniBand XDR SMF Transceiver for Quantum-X800 Air-Cooled Switches
NVIDIA/Mellanox Coding Target MMS4A50-XM (980-9IAS0-00XM00) is a 1.6T 2x800Gb/s Twin-port OSFP, 2xFR4 single mode, multiplexed, 8-channel transceiver using two, 2-fiber, LC Duplex optical connectors each carrying 4-channels of 200G-PAM4. Powered by Broadcom 3nm DSP (Sian3| BCM83628) and self-developed silicon photonics chips, it is designed to link NVIDIA Quantum-X800 air-cooled switches.
Use this selection as the requested coding target. Final compatibility still requires the host model, port type and firmware version.
Product brand: SUNFULL. Third-party names identify requested compatibility or coding targets only and do not imply affiliation, endorsement or original-equipment status.
Engineering record
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Technical detail
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The 1.6T 2xFR4 transceiver integrates a Broadcom 3nm DSP (BCM83628), in-house silicon photonics, an LC interface, and a Closed-Top housing to optimize performance, reliability, and deployment efficiency. Compared with 5nm solutions, it reduces power consumption by over 20%, lowering thermal load while ensuring stable 2 km transmission. The LC interface simplifies deployment and maintenance through seamless integration with existing fiber infrastructure, while the Closed-Top housing improves thermal performance and suppresses EMI for reliable operation in high-density AI clusters.
As NVIDIA B300 clusters continue to scale, GPU fabrics are evolving toward higher-density, larger-scale deployments, making inter-building connectivity an increasingly important requirement for large-scale AI infrastructures. Designed for B300 cluster deployments, the 1.6T 2xFR4 transceiver provides up to 2 km FR connectivity and features dual LC interfaces to simplify on-site cabling and link management, reducing system-level cabling complexity while enabling more efficient large-scale deployment and operations, and protecting long-term infrastructure investment.

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Compare alternatives
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