The 400G QSFP-DD QDD PC Passive DAC, 0.5m provides a 400Gbps copper connection between QSFP-DD to QSFP-DD ports with a cable length of 0.5m (2ft). 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 QSFP-DD
• Data rate: 400Gbps
• Cable type: Passive Twinax
• Length: 6 standard options from 0.5m (2ft) to 3m (10ft)
• Operating temperature: 0 to 70°C (32 to 158°F)

Designed for 400G Ethernet data center and cloud network environments, the 400G QSFP-DD QDD PC Passive DAC, 0.5m carries 400Gbps between QSFP-DD to QSFP-DD interfaces. This unit is available in 6 standard lengths from 0.5m (2ft) to 3m (10ft). Because the assembly is factory terminated and tested as a complete link, installation is plug and play on both ends. Our factory programs the compatibility coding for your switch brand before shipment and verifies each unit on real host equipment. The link runs 8x 50Gbps PAM4 modulation, which keeps it aligned with current 400G switch silicon.

Compliance: IEEE 802.3cd, QSFP-DD MSA, CMIS 4.0. Every unit's EEPROM coding and link behavior are verified on real host equipment in our lab, so what arrives at your site is ready to use.

The standard part number of this assembly is QDD-400G-PC. We supply this cable in 0.5m (2ft), 1m (3ft), 1.5m (5ft), 2m (7ft), 2.5m (8ft) and 3m (10ft). Custom lengths beyond this range can also be produced on request. Wire gauge: 30AWG. Samples for testing can be arranged before bulk orders.

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.

As a manufacturer serving the fiber optic industry since 1995, we have strong in-house manufacturing and design capability. From early GBIC, Xenpak and X2 modules to today's SFP, SFP+, QSFP, QSFP-DD and OSFP products, we grow together with the industry. OEM and custom-designed transceivers and cables are welcome, and our factory-direct pricing is very competitive compared with online retail stores.

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.

Production samples and every outgoing batch pass through bit-error-rate measurement, temperature verification and plug-in compatibility checks on mainstream switches and routers. Because we are the manufacturer, any issue found in testing is fed back to the production line immediately instead of being passed on to customers.