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)

Designed for 400G Ethernet data center and cloud network environments, the 400G QSFP-DD to 4 x 100G QSFP56 Active Copper Breakout DAC Cable carries 400Gb/s between QSFP-DD to 4xQSFP56 interfaces. 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. Our factory programs the compatibility coding for your switch brand before shipment and verifies each unit on real host equipment. The link runs PAM4 modulation, which keeps it aligned with current 400G switch silicon.

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.

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.

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.

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.

Our product line has grown with the industry for three decades, from GBIC-era modules to today's 800G and 1.6T interconnects. If the exact configuration you need is not listed, we can usually build it: custom lengths, mixed connector breakouts, OEM branding and project-specific firmware coding are all supported.

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.