Cisco QSFP-400G-QDDAO Compatible 400G QSFP112 4 x 100G PAM4 to 400G QSFP-DD 8 x 50G PAM4 Active Optical Cable

This Cisco QSFP-400G-QDDAO compatible AOC cable provides 400G connectivity through a QSFP112 to QSFP-DD interface. It is an active optical connection with permanently attached ends and fiber integrated into the assembly. The series configurations covered on this page are 3m (10ft) and 5m (16ft).

Series Part Number: QSFP-400G-QDDAOHT Part Number: QSFP-400G-QDDAO

Product Highlights

• HT-manufactured compatible alternative for Cisco QSFP-400G-QDDAO
• 400G aggregate connectivity at 400Gbps
• Interface configuration: QSFP112 to QSFP-DD
• AOC
• Length configurations covered: 3m (10ft) and 5m (16ft)
• Power consumption: 10W (QSFP112 End) 14W (QSFP-DD End)

This series page covers the following verified source length configurations: 3m (10ft) and 5m (16ft). Each documented length-specific OEM reference is treated as its own product configuration; follow the corresponding product link where available. Select the required length when requesting a quotation; custom project lengths are available for discussion.

• QSFP-400G-QDDAO03

AOC assemblies integrate the optical engines and fiber into a single factory-terminated link. They are useful for longer or lighter high-speed connections than copper direct attach, with no fiber polarity or connector cleaning required between separate patch cords and modules.

The QSFP112 to QSFP-DD interface and 400G data rate must match the equipment at both ends. For breakout versions, confirm the lane mapping and the speed of every downstream port; matching connector shapes alone does not establish interoperability.

The assembly is configured for equipment that recognizes the QSFP-400G-QDDAO series. Before shipment, we check connector identification, link establishment and optical link operation, receive activity and diagnostic readouts. Host hardware and firmware revisions can affect third-party cable acceptance, so customers can provide the switch, server or accelerator model and software release for a pre-order compatibility review.

This series is ordered by the base HT part number QSFP-400G-QDDAO plus length and compatibility requirement. Available source configurations documented on this page are 3m (10ft) and 5m (16ft); other project lengths can be discussed with the factory, and each length-specific OEM reference is reviewed under its own product configuration.

Every AOC assembly undergoes continuity and link testing, compatibility verification and a visual inspection of both connector ends. Cables are coiled without exceeding their minimum bend radius, fitted with connector protection and packed in anti-static bags or protective trays before cartoning. Project labels and packing lists are available for volume orders.

Standard configurations normally ship within one to three working days. Worldwide courier, air freight and sea freight options are available, and shipments can also be sent on your own courier account or delivered to an appointed forwarder.