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

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)

In 400G Ethernet data center and cloud network environments, the 400G QSFP-DD to 4 x 100G QSFP56 Active Copper Breakout DAC Cable provides a factory terminated 400Gb/s link between QSFP-DD to 4xQSFP56 ports. This unit is supplied at 3-7m. By fanning one port out to 4xQSFP56, it doubles or quadruples the number of endpoints served per switch port and keeps the cabling plant simple. Custom labeling, packaging and compatibility coding for specific equipment vendors are available from our factory on request. The link runs PAM4 modulation, which keeps it aligned with current 400G switch silicon.

Standards compliance covers QSFP-DD MSA SFF-8679 SFF-8636. The unit works in any equipment with a standard QSFP-DD to 4xQSFP56 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 model is supplied at 3-7m under part number QDD-400G-4QACxxx. Other lengths of the same assembly can be produced on request. Volume pricing is available for project quantities.

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.

Goods are normally sent by courier such as DHL, UPS, FedEx, TNT or EMS; air and sea freight are also available on request. Commonly used items are kept in stock for immediate shipment, and out-of-stock items are usually delivered within a few working days. We can also ship on your courier account or hand goods to your appointed forwarder.

We do not ship untested stock. Each transceiver and cable is powered up in our test racks, checked for link stability, transmit power, receiver sensitivity and diagnostic readouts, and only then packed for delivery. This factory-level testing is one reason network integrators keep reordering from us year after year.

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.