The 400G QSFP-DD to 4 x 100G QSFP56 Active Copper Breakout DAC Cable is a active twinax direct attach copper cable with QSFP-DD to 4xQSFP56, supporting 400Gb/s links over a length of 3-7m. Active electronics inside the connectors extend the usable reach compared with passive copper while keeping power draw low. It is a cost effective, low latency interconnect for 400G Ethernet data center and cloud network environments, and complies with QSFP-DD MSA SFF-8679 SFF-8636.
Product Highlights
- QSFP-DD to 4xQSFP56
- Data rate: 400Gb/s
- Cable type: Active Twinax
- Length: 3-7m
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Part Number | QDD-400G-4QACxxx |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD to 4xQSFP56 |
| Max Data Rate | 400Gb/s |
| Cable Length | 3-7m |
| Cable Type | Active Twinax |
| Jacket Material | PVC |
| Max Power Consumption | 0.1W |
| Modulation Format | PAM4 |
| Inbuilt FEC | No |
| Operating Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | QSFP-DD MSA SFF-8679 SFF-8636 |
Applications
The 400G QSFP-DD to 4 x 100G QSFP56 Active Copper Breakout DAC Cable connects QSFP-DD to 4xQSFP56 ports at 400Gb/s in 400G Ethernet data center and cloud network environments. This unit is supplied at 3-7m. One port becomes 4xQSFP56, a common pattern for connecting newer aggregation ports to an installed base of lower speed equipment. If your project needs a specific vendor coding or custom label, our production line handles it as a routine step before packing. The link runs PAM4 modulation, which keeps it aligned with current 400G switch silicon.
Standards and Compatibility
This product is designed and tested to comply with QSFP-DD MSA SFF-8679 SFF-8636. It plugs into any standards-based QSFP-DD to 4xQSFP56 port, and compatibility coding for specific switch or router brands can be done in our factory before shipment.
Ordering Information
This model is supplied at 3-7m under part number QDD-400G-4QACxxx. Other lengths of the same assembly can be produced on request.
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.
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.
Shipping and Lead Time
Standard products are held in stock and usually ship within one to three working days. We dispatch worldwide by DHL, UPS, FedEx, TNT or EMS, and for bulk orders we arrange air or sea freight. Shipments can also be sent collect on your own courier account or delivered to your freight forwarder.
Reliability Control
From incoming component inspection to final burn-in, quality is controlled at each step of production. Finished units are verified on real networking equipment in our compatibility lab, and test records are kept per batch so that any field question can be traced back quickly.