
The NVIDIA InfiniBand Compatible 400G OSFP 8x 50G PAM4 to 2x 200G QSFP56 4x 50G PAM4 InfiniBand HDR Passive Breakout DAC Cable is a passive twinax direct attach copper cable with OSFP to 2x QSFP56, supporting 400Gbps links over a length of 2m (7ft). As a passive cable it draws essentially no power and adds no latency to the link. It is a cost effective, low latency interconnect for InfiniBand HDR fabrics, HPC clusters and AI computing networks, and complies with OSFP MSA, CMISRev4.0, IEEE802.3cd, SFF-8436, SFF-8665, SFF-8679, SFF-8636.
Product Highlights
- OSFP to 2x QSFP56
- Data rate: 400Gbps
- Cable type: Passive Twinax
- Length: 3 factory standard lengths covering 1m (3ft) to 2m (7ft)
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| NVIDIA/Mellanox InfiniBand Compatible | MCP7Y60-H002 |
|---|---|
| Manufacturer | HT |
| Form Factor | OSFP to 2x QSFP56 |
| Max. Data Rate | 400Gbps |
| Cable Length | 1m (3ft), 1.5m (5ft), 2m (7ft) |
| Wire AWG | 28AWG |
| Minimum Bend Radius | 40.5mm |
| Max. Power Consumption | 0.1W (OSFP End) 0.1W (QSFP56 Per End) |
| Cable Type | Passive Twinax |
| Jacket Material | PVC |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | OSFP MSA, CMISRev4.0, IEEE802.3cd, SFF-8436, SFF-8665, SFF-8679, SFF-8636 |
| Application | InfiniBand HDR |
| Modulation Technology | PAM4 |
Applications
The NVIDIA InfiniBand Compatible 400G OSFP 8x 50G PAM4 to 2x 200G QSFP56 4x 50G PAM4 InfiniBand HDR Passive Breakout DAC Cable is a 400Gbps direct attach copper cable for OSFP to 2x QSFP56 connections in InfiniBand HDR fabrics, HPC clusters and AI computing networks. This unit is produced in 3 standard lengths from 1m (3ft) to 2m (7ft). By fanning one port out to 2x QSFP56, it doubles or quadruples the number of endpoints served per switch port and keeps the cabling plant simple. Compatibility with NVIDIA/Mellanox InfiniBand systems is verified in our own test lab before shipment, so the unit works out of the box as an equivalent of MCP7Y60-H002.
Standards and Compatibility
This product is designed and tested to comply with OSFP MSA, CMISRev4.0, IEEE802.3cd, SFF-8436, SFF-8665, SFF-8679, SFF-8636. It is interoperable with NVIDIA/Mellanox InfiniBand equipment and serves as a direct equivalent to the NVIDIA/Mellanox InfiniBand part number MCP7Y60-H002.
Ordering Information
The factory part number is OSFP-400G-2QPC. This cable is available in 1m (3ft), 1.5m (5ft) and 2m (7ft). Lengths outside the standard range are made to order in our factory. Wire gauge: 28AWG.
How We Ship
Most orders travel by international express and arrive within days; palletized freight by air or sea is used for volume orders. If you prefer, we ship on your DHL, UPS or FedEx account, or deliver to your appointed agent in China for onward consolidation.
Quality Assurance
Before any product leaves our factory it goes through optical performance testing, compatibility verification on real switch platforms and a final visual inspection. Our in-house test lab holds a wide range of current and legacy switches from major brands, so interoperability is proven on the actual equipment your network uses rather than assumed from paper specifications.
Packaging
Each unit is sealed in an anti-static bag, cushioned in a blister tray and boxed in an export-grade carton. Outer cartons carry handling marks and can be palletized for air or sea freight. If your project requires retail boxes, barcodes or your own brand on the label, we can arrange that as well.
OEM and Custom Orders
We have manufactured fiber optic connectivity products since 1995 and run our own production lines in Shenzhen. Beyond the standard catalog we build to order: special cable lengths, custom connector combinations, vendor-specific compatibility coding and private labeling. Send us your requirement and our engineers will quote a practical solution.



