980-9IAT0-00XM00 | MMS4A20-XM800 | Transceiver
800G OSFP DR4 500m Transceiver with 1 exact SKU option. Confirm the host, port and firmware before quotation.
InfiniBand Interconnects
Catalog reference: NVIDIA/Mellanox Coding Target MMS4A20-XM800 (980-9IAT0-00XM00/980-9IAY0-00XM00) Compatible 800G DR4 OSFP224 RHS/Flat Top 4x200G PAM4 Broadcom 3nm DSP (Sian3| BCM83628) 1310nm 500m SMF DOM MPO-12/APC InfiniBand XDR Optical Transceiver Module for ConnectX-9/ConnectX-8/B300/GB300
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 Compatible MMS4A20-XM800 (980-9IAT0-00XM00/980-SIAY0-00XM00), is an 800 Gb/s single-mode transceiver with a riding heat sink or flat top, supporting the XDR 800 Gb/s InfiniBand protocol. Powered by Broadcom 3nm DSP (Sian3: BCM83628) and self-developed silicon photonics chips, it delivers high-speed, low-latency connectivity. Designed for server-side use, it is compatible with NVIDIA ConnectX-8 and ConnectX-9 (C9180) network adapters, enabling high-performance interconnects between NVIDIA DGX B300/GB300 and OEM HGX B300/HGX B200 servers and NVIDIA Quantum-X800 QM3x00 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 Coding Target MMS4A20-XM800 (980-9IAT0-00XM00/980-SIAY0-00XM00) Compatible 800G DR4 OSFP224 4x200G-PAM4 1310nm 500m InfiniBand XDR Module Featuring Broadcom 3nm DSP (Sian3| BCM83628) for SMF (Riding Heat Sink/Flat Top)
NVIDIA/Mellanox Compatible MMS4A20-XM800 (980-9IAT0-00XM00/980-SIAY0-00XM00), is an 800 Gb/s single-mode transceiver with a riding heat sink or flat top, supporting the XDR 800 Gb/s InfiniBand protocol. Powered by Broadcom 3nm DSP (Sian3: BCM83628) and self-developed silicon photonics chips, it delivers high-speed, low-latency connectivity. Designed for server-side use, it is compatible with NVIDIA ConnectX-8 and ConnectX-9 (C9180) network adapters, enabling high-performance interconnects between NVIDIA DGX B300/GB300 and OEM HGX B300/HGX B200 servers and NVIDIA Quantum-X800 QM3x00 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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In high-density XDR networks, 800G optical links between servers and switches are required to operate at full load over long periods, which places higher demands on power consumption, heat dissipation, and link stability. 800G DR4 transceiver features Broadcom 3nm DSP (BCM83628) and in-house silicon photonics chips. This design effectively reduces power consumption and thermal burden, and significantly enhances signal quality and link reliability, building stable and dependable high-speed interconnects for large-scale GPU clusters.

These transceivers are compatible with mainstream high-density GPU servers such as NVIDIA DGX B300/GB300 and OEM HGX B200. They work seamlessly with switch-side 1.6T transceivers to enable high-speed, reliable server-to-switch interconnection. In large-scale AI training and inference scenarios, they consistently deliver high-bandwidth, low-latency data transmission to fully unlock cluster performance.

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