400G QSFP-DD to 4 x 100G QSFP56 Passive Copper Breakout DAC Cable

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)

The 400G QSFP-DD to 4 x 100G QSFP56 Passive Copper Breakout DAC Cable is a 400Gbps direct attach copper cable for QSFP-DD to 4x QSFP56 connections in 400G Ethernet data center and cloud network environments. Ordered in customized lengths, it matches the actual rack geometry without slack. One port becomes 4x QSFP56, a common pattern for connecting newer aggregation ports to an installed base of lower speed equipment. Custom labeling, packaging and compatibility coding for specific equipment vendors are available from our factory on request.

Standards compliance covers SFF-8665, QSFP-DD MSA, IEEE802.3bj, IEEE802.3 cd. The unit works in any equipment with a standard QSFP-DD to 4x QSFP56 interface; if your network uses a specific vendor's coding, tell us the switch model and we will program and verify it before delivery.

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.

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.

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.

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.

Production samples and every outgoing batch pass through bit-error-rate measurement, temperature verification and plug-in compatibility checks on mainstream switches and routers. Because we are the manufacturer, any issue found in testing is fed back to the production line immediately instead of being passed on to customers.