
The 400G OSFP 8 x 50G PAM4 IHS/Finned Top to 4 x 100G QSFP56 2 x 50G PAM4 Active Optical Breakout AOC connects OSFP (IHS/Finned Top) to 4x QSFP56 ports at 400Gbps over Breakout AOC fiber at 850nm. Because the optics are built into the cable ends, installation is plug and play with no separate transceivers to manage, and airflow inside the rack stays unobstructed. It is well suited to InfiniBand HDR fabrics, HPC clusters and AI computing networks. Cable length: 3m~30m (10ft~98ft).
Product Highlights
- OSFP (IHS/Finned Top) to 4x QSFP56
- Data rate: 400Gbps
- Cable type: Breakout AOC
- Length: 3m~30m (10ft~98ft)
- Wavelength: 850nm
- DDM/DOM: Supported
Specifications
| Part Number | OSFP-400G-4QAOxxx |
|---|---|
| Manufacturer | HT |
| Form Factor | OSFP (IHS/Finned Top) to 4x QSFP56 |
| Max. Data Rate | 400Gbps |
| Cable Length | 3m~30m (10ft~98ft) |
| Cable Type | Breakout AOC |
| Wavelength | 850nm |
| Minimum Bend Radius | 30mm |
| Transmitter Type | VCSEL |
| Receiver Type | PIN |
| Max. Power Consumption | 10W (OSFP End) 5.5W (QSFP56 Per End) |
| Modulation Format | OSFP-8x 50G-PAM4 QSFP56-2x 50G-PAM4 |
| CDR (Clock and Data Recovery) | TX & RX Built-in CDR |
| Jacket Material | OFNP |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | IEEE 802.3cd, CMIS 5.0, SFF-8661, SFF-8636 |
| Application | 400G to 4x 100G |
Applications
The 400G OSFP 8 x 50G PAM4 IHS/Finned Top to 4 x 100G QSFP56 2 x 50G PAM4 Active Optical Breakout AOC connects OSFP (IHS/Finned Top) to 4x QSFP56 ports at 400Gbps in InfiniBand HDR fabrics, HPC clusters and AI computing networks. This unit is supplied at 3m~30m (10ft~98ft). By fanning one port out to 4x QSFP56, it doubles or quadruples the number of endpoints served per switch port and keeps the cabling plant simple. Custom labeling, packaging and compatibility coding for specific equipment vendors are available from our factory on request. The link runs OSFP-8x 50G-PAM4 QSFP56-2x 50G-PAM4 modulation, which keeps it aligned with current 400G switch silicon.
Standards and Compatibility
Compliance: IEEE 802.3cd, CMIS 5.0, SFF-8661, SFF-8636. 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
This model is supplied at 3m~30m (10ft~98ft) under part number OSFP-400G-4QAOxxx. Other lengths of the same assembly can be produced on request. Volume pricing is available for project quantities.
Quality and Testing
Every unit we ship is tested in our own test bed on mainstream switch and transport platforms before packing. Our test center has been fully upgraded, which sets us apart from other third party product providers: 10G, 40G, 100G, 200G and 400G transceivers and direct attach cables are verified on the latest top brand equipment, including selected original switches that can hardly be found elsewhere.
Package
Products are first packed into blister trays or self-sealed bags and then into cartons. Standard labels and marks are applied by default, and customized packing and labeling are available on request.
Built to Your Spec
Our product line has grown with the industry for three decades, from GBIC-era modules to today's 800G and 1.6T interconnects. If the exact configuration you need is not listed, we can usually build it: custom lengths, mixed connector breakouts, OEM branding and project-specific firmware coding are all supported.
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.



