400G QSFP-DD to 8 x 50G SFP56 Passive Copper Breakout DAC Cable

The 400G QSFP-DD to 8 x 50G SFP56 Passive Copper Breakout DAC Cable provides a 400Gbps copper connection between QSFP-DD to 8x SFP56 ports with a cable length of 0.5m (2ft)~3m (10ft). As a passive cable it draws essentially no power and adds no latency to the link. Direct attach copper keeps both latency and power consumption to a minimum, which makes it the economical choice for 400G Ethernet data center and cloud network environments.

Product Highlights

• QSFP-DD to 8x SFP56
• Data rate: 400Gbps
• Cable type: Passive Breakout DAC
• Length: 0.5m (2ft)~3m (10ft)
• DDM/DOM: Not Supported

In 400G Ethernet data center and cloud network environments, the 400G QSFP-DD to 8 x 50G SFP56 Passive Copper Breakout DAC Cable provides a factory terminated 400Gbps link between QSFP-DD to 8x SFP56 ports. This unit is supplied at 0.5m (2ft)~3m (10ft). One port becomes 8x SFP56, a common pattern for connecting newer aggregation ports to an installed base of lower speed equipment. If your project needs a specific vendor coding or custom label, our production line handles it as a routine step before packing.

Standards compliance covers QSFP-DD MSA, SFF-8432, IEEE 802.3bs-400GAUI-8, IEEE802.3cd-50GAUI-1, CMIS 4.0, SFF-8472. The unit works in any equipment with a standard QSFP-DD to 8x SFP56 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 0.5m (2ft)~3m (10ft) under part number QDD-400G-8SPCxxx. Other lengths of the same assembly can be produced on request. Wire gauge: 28~30AWG. Volume pricing is available for project quantities.

Working directly with the manufacturer means no middleman limits. We support OEM and ODM projects, custom cable assemblies, alternative packaging and compatibility coding for major equipment vendors, with engineering support from the same team that designs our standard products.

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.

Before any product leaves our factory it goes through optical performance testing, compatibility verification on real switch platforms and a final visual inspection. Our in-house test lab holds a wide range of current and legacy switches from major brands, so interoperability is proven on the actual equipment your network uses rather than assumed from paper specifications.

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.