NVIDIA/Mellanox QDD-400G-4QAO Compatible 400G QSFP-DD 8 x 50G PAM4 to 4 x 100G QSFP56 2 x 50G PAM4 Ethernet Active Optical Breakout Cable

Use this AOC cable where a 400G link is required between compatible QSFP-DD to 4x QSFP56 ports. This HT version corresponds to NVIDIA/Mellanox QDD-400G-4QAO and covers 30m (98ft); electrical or optical construction follows the AOC specification rather than a detachable transceiver-and-patch-cord arrangement.

Series Part Number: QDD-400G-4QAOHT Part Number: QDD-400G-4QAO

Product Highlights

• HT-manufactured compatible alternative for NVIDIA/Mellanox QDD-400G-4QAO
• 400G aggregate connectivity at 400Gbps
• Interface configuration: QSFP-DD to 4x QSFP56
• OM3
• Length configurations covered: 30m (98ft)
• Power consumption: 12W (QSFP-DD End)3.5W (QSFP56 Per End)
• Operating temperature: 0 to 70°C (32 to 158°F)

This series page covers the following verified source length configurations: 30m (98ft). 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.

• QDD-400G-4QAO30

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 QSFP-DD to 4x QSFP56 interface and 400G data rate must match the equipment at both ends. The source application is listed as 400G Ethernet. 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 QDD-400G-4QAO 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.

Quote HT part number QDD-400G-4QAO, the required length from 30m (98ft), and the OEM part number used by your equipment. The length-specific OEM identifiers above identify the exact product configurations so each reference can be reviewed and ordered separately.

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.