400G QSFP-DD 8x 50G PAM4 to 4x 100G QSFP56 2x 50G PAM4 Passive Breakout DAC Cable

For short reach 400Gbps links in 400G Ethernet data center and cloud network environments, the 400G QSFP-DD 8x 50G PAM4 to 4x 100G QSFP56 2x 50G PAM4 Passive Breakout DAC Cable, 2m offers a factory terminated twinax assembly with QSFP-DD to 4x QSFP56 connectors and a length of 2m (7ft). As a passive cable it draws essentially no power and adds no latency to the link. The cable meets SFF-8665, QSFP-DD MSA, IEEE802.3bj, IEEE802.3 cd.

Product Highlights

• QSFP-DD to 4x QSFP56
• Data rate: 400Gbps
• Length: 0.5m (2ft) to 3m (10ft), 6 standard options
• Operating temperature: 0 to 70°C (32 to 158°F)

In 400G Ethernet data center and cloud network environments, the 400G QSFP-DD 8x 50G PAM4 to 4x 100G QSFP56 2x 50G PAM4 Passive Breakout DAC Cable, 2m provides a factory terminated 400Gbps link between QSFP-DD to 4x QSFP56 ports. This unit is stocked in 6 standard lengths from 0.5m (2ft) to 3m (10ft). One port becomes 4x QSFP56, a common pattern for connecting newer aggregation ports to an installed base of lower speed equipment. 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 SFF-8665, QSFP-DD MSA, IEEE802.3bj, IEEE802.3 cd. It plugs into any standards-based QSFP-DD to 4x QSFP56 port, and compatibility coding for specific switch or router brands can be done in our factory before shipment.

Order reference: part number QDD-400G-4QPC. Standard supply covers 0.5m (2ft), 1m (3ft), 1.5m (5ft), 2m (7ft), 2.5m (8ft) and 3m (10ft). Custom length production is available for project requirements. Wire gauge: 28AWG. Samples for testing can be arranged before bulk orders.

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.

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.

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.

Transceivers and cables are individually protected against static and dust, then consolidated into sturdy cartons suitable for international courier shipment. For larger orders we shrink-wrap and strap cartons onto pallets. Tell us your warehouse or retail requirements and we will pack accordingly.