400G QSFP-DD to 2 x 200G QSFP56 Passive Copper Breakout DAC Cable

The 400G QSFP-DD to 2 x 200G QSFP56 Passive Copper Breakout DAC Cable is a passive twinax direct attach copper cable with QSFP-DD to 2 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 IEEE802.3Bj, By, IEEE802.3CD, SFF-8679, SFF-8636.

Product Highlights

• QSFP-DD to 2 QSFP56
• Data rate: 400Gbps
• Cable type: Passive Twinax
• Length: Customized
• 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 2 x 200G QSFP56 Passive Copper Breakout DAC Cable carries 400Gbps between QSFP-DD to 2 QSFP56 interfaces. Ordered in customized lengths, it matches the actual rack geometry without slack. The integrated construction removes separate optics from the link budget and reduces the number of failure points in the row. Our factory programs the compatibility coding for your switch brand before shipment and verifies each unit on real host equipment.

Standards compliance covers IEEE802.3Bj, By, IEEE802.3CD, SFF-8679, SFF-8636. The unit works in any equipment with a standard QSFP-DD to 2 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-2QPCxxx identifies the configuration. When placing an order, tell us the length you need and any label or packaging requirements.

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.

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.

Our warehouse keeps fast-moving transceivers and cables ready for same-week dispatch. Courier, air freight and sea freight options are all available depending on your budget and schedule, and we consolidate multiple items into one shipment whenever it saves you cost.

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.