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

The 400G QSFP-DD 8x 50G PAM4 to 4x 100G QSFP56 2x 50G PAM4 Active Breakout DAC Cable is a active twinax direct attach copper cable with QSFP-DD to 4x QSFP56, supporting 400Gb/s links over a length of 5m. Active electronics inside the connectors extend the usable reach compared with passive copper while keeping power draw low. It is a cost effective, low latency interconnect for 400G Ethernet data center and cloud network environments, and complies with QSFP-DD MSA SFF-8679 SFF-8636.

Product Highlights

• QSFP-DD to 4x QSFP56
• Data rate: 400Gb/s
• Cable type: Active Twinax
• Length: standard options (3) from 3m (10ft) to 5m (16ft)
• Operating temperature: 0 to 70°C (32 to 158°F)

The 400G QSFP-DD 8x 50G PAM4 to 4x 100G QSFP56 2x 50G PAM4 Active Breakout DAC Cable is a 400Gb/s active copper cable for QSFP-DD to 4x QSFP56 connections in 400G Ethernet data center and cloud network environments. This unit is manufactured in 3 standard lengths from 3m (10ft) to 5m (16ft). By fanning one port out to 4x QSFP56, it doubles or quadruples the number of endpoints served per switch port and keeps the cabling plant simple. If your project needs a specific vendor coding or custom label, our production line handles it as a routine step before packing. The link runs PAM4 modulation, which keeps it aligned with current 400G switch silicon.

Compliance: QSFP-DD MSA SFF-8679 SFF-8636. 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.

Part number of this model: QDD-400G-4QAC. Length options are 3m (10ft), 4m (13ft) and 5m (16ft). Our factory also produces custom lengths beyond these on request. Wire gauge: 28 AWG. Samples for testing can be arranged before bulk orders.

Every unit we ship is tested in our own test bed on mainstream switch and transport platforms before packing. Our test center has been fully upgraded, which sets us apart from other third party product providers: 10G, 40G, 100G, 200G and 400G transceivers and direct attach cables are verified on the latest top brand equipment, including selected original switches that can hardly be found elsewhere.

Standard packing is an anti-static bag plus blister protection, with cartons sized to keep products from moving in transit. We apply our standard labels by default; neutral packing or customer-branded labels, part number stickers and serial barcodes are all available on request.

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.

Standard products are held in stock and usually ship within one to three working days. We dispatch worldwide by DHL, UPS, FedEx, TNT or EMS, and for bulk orders we arrange air or sea freight. Shipments can also be sent collect on your own courier account or delivered to your freight forwarder.