NSComm NVIDIA/Mellanox Compatible 800G OSFP Finned Top to 2 x 400G OSFP Flat Top Ethernet Active Electrical Copper Breakout Cable up to 5m(16ft)

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800G OSFP (Finned Top) to 2¡Á400G OSFP (Flat Top) Ethernet Active Electrical Breakout Cable (AEC)
Overview
The NSComm 800G OSFP Finned Top to 2¡Á400G OSFP Flat Top Active Electrical Breakout Cable (AEC) is a high-speed copper fanout solution that lets you split one 800G OSFP port into two 400G OSFP links for 800G/400G Ethernet short-to-medium reach connections. Unlike passive copper, this AEC integrates retimer chips to amplify and reshape PAM4 signals, helping reduce jitter and keeping the link stable at high data rates.
This product is designed primarily for NVIDIA Ethernet deployments-commonly used in AI data center networks-and is verified for NVIDIA SN5600 switches and NIC environments. For the rare cases where NVIDIA is not required, you can still keep one "Generic" option on your product page as a fallback. The OSFP finned-top end supports better heat dissipation in dense switch cages, while the OSFP flat-top ends fit adapter-style cages using riding heatsinks.
Compatibility (Coding)
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Primary option: NVIDIA (ETH) (recommended for most real-world deployments).
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Backup option: Generic (for special non-NVIDIA needs).
Need help confirming the right choice? Contact our certified engineers for quick validation.
Use Scenarios / Applications
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NVIDIA 800G switch port fanout: split an 800G OSFP port into two 400G OSFP links to connect to 400G devices.
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Leaf/Spine inside a pod: short interconnects between switches in the same row or adjacent racks.
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AI rack expansion: add 400G connections while keeping an 800G core, ideal for phased upgrades.
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Dense cage deployments: finned-top OSFP at the switch helps with airflow and heat in high-port-count environments.
Key Specifications
| Specification | Details |
|---|---|
| Vendor Name | NSComm |
| Product Type | 800G OSFP (Finned Top) to 2¡Á400G OSFP (Flat Top) Ethernet Active Electrical Breakout Cable (AEC) |
| Form Factor | OSFP (Finned Top) to 2¡ÁOSFP (Flat Top) |
| Max Data Rate | 800Gbps (2¡Á400Gbps) |
| Media | Copper |
| Cable Type | AEC (Active Electrical Breakout Cable) |
| Signal Conditioning | Retimer chips (jitter reduction, signal reshape) |
| Modulation Format | 8¡Á100G-PAM4 ¡ú Dual 4¡Á100G-PAM4 |
| Max Power Consumption | 12W (800G end); 10W (per 400G end) |
| Minimum Bend Radius | 38mm |
| Wire AWG | 28AWG |
| Jacket Material | PET |
| Temperature Range | 0 to 70¡ãC |
| Application | 800G/400G Ethernet |
| Standards / Compliance | OSFP MSA Rev 5.1, IEEE 802.3ck, CMIS 5.0 |
| Warranty | 5 Years |
Why Choose NSComm 800G¡ú2¡Á400G OSFP Breakout AEC?
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NVIDIA-first design: verified for NVIDIA SN5600 and common NVIDIA Ethernet builds.
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Stable PAM4 breakout: retimers improve signal quality and reduce jitter.
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Port efficiency: one 800G port becomes two 400G links for flexible topology planning.
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Thermal-aware form factor: finned-top at the switch, flat-top at the endpoint for real rack use.
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Plug-and-play copper: fast deployment for short-to-medium reach links without optics.
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Engineer-backed support: topology + coding selection guidance available.
Options
Available lengths: 1m, 2m, 3m, 4m, 5m
Coding options: NVIDIA (ETH) (primary) + Generic (backup)
More Details
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