
Designed for InfiniBand HDR fabrics, HPC clusters and AI computing networks, the 400G OSFP DR4 FL Optical Transceiver provides 425Gbps (4x106.25Gbps) throughput in a Single-port OSFP RHS/Flat Top form factor. It operates at 1310nm over SMF through a MPO-12/APC connector and supports link lengths up to 500m. The module meets OSFP MSA Rev. 5.0, CMIS Rev. 4.0, IEEE Std 802.3bs-2017, IEEE Std 802.3ck-2022 and includes digital diagnostic monitoring for live status readout.
Product Highlights
- Single-port OSFP RHS/Flat Top form factor, 425Gbps (4x106.25Gbps) data rate
- Wavelength: 1310nm
- Connector: MPO-12/APC
- Reach: up to 500m
- Fiber media: SMF
- DDM/DOM: Supported
Specifications
| Part Number | OSFP-DR4-400G-FL |
|---|---|
| Manufacturer | HT |
| Form Factor | Single-port OSFP RHS/Flat Top |
| Max. Data Rate | 425Gbps (4x106.25Gbps) |
| Wavelength | 1310nm |
| Max. Cable Distance | 500m |
| Connector | MPO-12/APC |
| Media | SMF |
| Transmitter Type | DFB |
| Receiver Type | PIN |
| TX Power | -2.9~4dBm |
| Minimum Receiver Power | -5.9dBm |
| Power Budget | 3dB |
| Receiver Overload | 4.0dBm |
| Max. Power Consumption | 9W |
| Extinction Ratio | 3.5dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 4x100G-PAM4 |
| Modulation (Optical) | 4x100G-PAM4 |
| CDR (Clock and Data Recovery) | TX & RX Built-in CDR |
| Inbuilt FEC | Yes |
| Core Size | 9/125um |
| Packaging Technology | COB |
| MTBF | 4974730 Hours (@40°C, 60% CL) 2542973 Hours (@40°C, 90% CL) 3639584 Hours (@50°C, 60% CL) 1750006 Hours (@50°C, 90% CL) 2349812 Hours (@60°C, 60% CL) 1061485 Hours (@60°C, 90% CL) |
| Application | 400G InfiniBand |
| Protocols | OSFP MSA Rev. 5.0, CMIS Rev. 4.0, IEEE Std 802.3bs-2017, IEEE Std 802.3ck-2022 |
Applications
Built for InfiniBand HDR fabrics, HPC clusters and AI computing networks, this Single-port OSFP RHS/Flat Top module carries 425Gbps (4x106.25Gbps) over SMF up to 500m per link. The MPO-12/APC interface and 1310nm optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. If your project needs a specific vendor coding or custom label, our production line handles it as a routine step before packing.
Standards and Compatibility
Compliance: OSFP MSA Rev. 5.0, CMIS Rev. 4.0, IEEE Std 802.3bs-2017, IEEE Std 802.3ck-2022. Every unit's EEPROM coding and link behavior are verified on real host equipment in our lab, so what arrives at your site is ready to use.
Ordering Information
Order this product as OSFP-DR4-400G-FL. Common models are stocked for fast dispatch. We can supply the module with neutral or customer-branded labels, and compatibility coding for a specific equipment vendor can be added at no extra process step.
Logistics
Our warehouse keeps fast-moving transceivers and cables ready for same-week dispatch. Courier, air freight and sea freight options are all available depending on your budget and schedule, and we consolidate multiple items into one shipment whenever it saves you cost.
Tested Before Shipment
We do not ship untested stock. Each transceiver and cable is powered up in our test racks, checked for link stability, transmit power, receiver sensitivity and diagnostic readouts, and only then packed for delivery. This factory-level testing is one reason network integrators keep reordering from us year after year.
How We Pack
Transceivers and cables are individually protected against static and dust, then consolidated into sturdy cartons suitable for international courier shipment. For larger orders we shrink-wrap and strap cartons onto pallets. Tell us your warehouse or retail requirements and we will pack accordingly.
Factory Custom Capability
Working directly with the manufacturer means no middleman limits. We support OEM and ODM projects, custom cable assemblies, alternative packaging and compatibility coding for major equipment vendors, with engineering support from the same team that designs our standard products.



