400G QSFP-DD QDD PC Passive DAC

The 400G QSFP-DD QDD PC Passive DAC, 0.5m is a passive twinax direct attach copper cable with QSFP-DD to QSFP-DD, supporting 400Gbps links over a length of 0.5m (2ft). 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 IEEE 802.3cd, QSFP-DD MSA, CMIS 4.0.

Product Highlights

• QSFP-DD to QSFP-DD
• Data rate: 400Gbps
• Cable type: Passive Twinax
• Length: available from 0.5m (2ft) to 3m (10ft) in 6 standard options
• Operating temperature: 0 to 70°C (32 to 158°F)

The 400G QSFP-DD QDD PC Passive DAC, 0.5m connects QSFP-DD to QSFP-DD ports at 400Gbps in 400G Ethernet data center and cloud network environments. This unit is supplied in 6 standard lengths from 0.5m (2ft) to 3m (10ft). 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.

This product is designed and tested to comply with IEEE 802.3cd, QSFP-DD MSA, CMIS 4.0. It plugs into any standards-based QSFP-DD to QSFP-DD port, and compatibility coding for specific switch or router brands can be done in our factory before shipment.

This model carries part number QDD-400G-PC. You can order this assembly in 0.5m (2ft), 1m (3ft), 1.5m (5ft), 2m (7ft), 2.5m (8ft) and 3m (10ft). Non-standard lengths can be produced on request. Wire gauge: 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.

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.

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.