The 400G QSFP-DD to 4 x 100G QSFP56 Passive Copper Breakout DAC Cable is a twinax direct attach copper cable with QSFP-DD to 4x QSFP56, supporting 400Gbps links over a length of Customized. 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 400G Ethernet data center and cloud network environments, and complies with SFF-8665, QSFP-DD MSA, IEEE802.3bj, IEEE802.3 cd.
Product Highlights
- QSFP-DD to 4x QSFP56
- Data rate: 400Gbps
- Length: Customized
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Part Number | QDD-400G-4QPCxxx |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD to 4x QSFP56 |
| Max. Data Rate | 400Gbps |
| Minimum Bend Radius | 35mm for ≤1m, 41mm for 1.5m~3m |
| Wire AWG | 30AWG for ≤1.5m, 28AWG for 2m~3m |
| Cable Length | Customized |
| Jacket Material | PVC |
| Media | Copper |
| Modulation Format | QSFP-DD-8x 50G-PAM4 QSFP56-2x 50G-PAM4 |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Power Supply | 3.3V |
| Protocols | SFF-8665, QSFP-DD MSA, IEEE802.3bj, IEEE802.3 cd |
| Max. Power Consumption | 0.1W (QSFP-DD End) 0.1W (QSFP56 Per End) |
| Application | 400G Ethernet |
Applications
In 400G Ethernet data center and cloud network environments, the 400G QSFP-DD to 4 x 100G QSFP56 Passive Copper Breakout DAC Cable provides a factory terminated 400Gbps link between QSFP-DD to 4x QSFP56 ports. Ordered in customized lengths, it matches the actual rack geometry without slack. The breakout design lets one high speed port feed 4x QSFP56, which raises port utilization and simplifies cabling in dense rows. Our factory programs the compatibility coding for your switch brand before shipment and verifies each unit on real host equipment.
Standards and Compatibility
This product is designed and tested to comply with SFF-8665, QSFP-DD MSA, IEEE802.3bj, IEEE802.3 cd. It plugs into any standards-based QSFP-DD to 4x QSFP56 port, and compatibility coding for specific switch or router brands can be done in our factory before shipment.
Ordering Information
This cable is built to order in customized lengths. Our part number QDD-400G-4QPCxxx identifies the configuration. Wire gauge follows the length: 30AWG for ≤1.5m, 28AWG for 2m~3m. When placing an order, tell us the length you need and any label or packaging requirements.
Customization Service
Because we are the factory, customization is straightforward: non-standard lengths, different jacket materials, specific polarity or breakout wiring, and compatibility programming for particular switch brands are all routine work for us. Small trial orders are accepted so you can verify quality before scaling up.
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.
Packing Details
Standard packing is an anti-static bag plus blister protection, with cartons sized to keep products from moving in transit. We apply our standard labels by default; neutral packing or customer-branded labels, part number stickers and serial barcodes are all available on request.