OSFP Module Specification Rev 5.22
Defines 1.6TAUI-8 and the eight-lane 200G-class electrical host interface.
1.6T OPTICAL · SELECTION & RFQ
1.6T Optical Interconnect Selection & RFQ Guide for AI Data Centers
1.6T is already a current project requirement. The buying question is no longer “when will 1.6T arrive?” but which exact 1.6T configuration fits the host platform, topology, reach, fiber plant and deployment date.
PlatformSwitch / NIC / DPU + exact port
ElectricalLane rate and host port mode
OpticalReach, fiber, connector, topology
CommercialQuantity, allocation and required date
1.6T is a product class, not one universal PNExact implementation remains platform and vendor specific.
OSFP supports a 1.6T host-interface pathThe current OSFP MSA defines 1.6TAUI-8 using eight 200G-class lanes.
Breakout is host-capability dependent1×1.6T, 2×800G, 4×400G or 8×200G mappings require actual host support.
Standards and products are different evidence layersCommercial availability does not mean every implementation is identical to a final Ethernet standard.
RFQ Decision Path
Eight inputs before an exact 1.6T part recommendation
A useful RFQ converts a bandwidth request into an endpoint-to-endpoint link definition.
01 / PLATFORMExact host systemSwitch, NIC / DPU, server platform and model.
02 / PORTPort and form factorExact cage, port number and supported operating mode.
03 / PROTOCOLEthernet / InfiniBand contextDo not infer protocol support from the rate label alone.
04 / TOPOLOGYNative or breakout1×1.6T, 2×800G, 4×400G or other documented mode.
05 / OPTICSReach and optical architectureDistance, DR / FR class and endpoint implementation.
06 / FIBERConnector and fiber plantMPO-family, duplex fiber or platform-specific path.
07 / VALIDATIONFirmware, FEC and CMISConfirm current platform software and module-management requirements.
08 / DELIVERYQuantity and required dateMatch the exact configuration to current allocation and project timing.
Technical Boundary
What the current public specifications actually establish
OSFP host interface
- OSFP MSA Rev 5.22 defines 1.6TAUI-8 over eight 224G-PAM4 electrical lanes.
- The same host-interface framework allows multiple PMD mappings when the host ASIC supports them.
- This establishes an electrical/form-factor framework, not universal platform compatibility.
Current platform evidence
- NVIDIA currently publishes a 1.6T/800G OSFP interconnect class for AI networking.
- Its published platform table ties that class to specific switches, NIC families and optical reaches.
- Use vendor-specific evidence for the actual endpoint instead of generalizing one vendor's matrix to every platform.
Standards status: IEEE P802.3dj covers 1.6 Tb/s Ethernet and remains in the standards process as of September 2026. QIANWU therefore separates current product supply from claims about final IEEE standard conformance.
Evidence Sources
Use current specification and platform evidence
NVIDIA Optical Transceivers and Cables
Current 1.6T/800G OSFP platform, connector and reach context for NVIDIA networking.
IEEE P802.3dj Task Force
Current public standards work for 200G, 400G, 800G and 1.6 Tb/s Ethernet.
OIF CMIS 5.3
Current common management-interface baseline used for pluggable-module management.
Have a live 1.6T requirement?
Send the platform, port, topology, reach, fiber, quantity and target delivery date. If you already have a PN or BOM, include it.