QSFP-DD to 4x QSFP28-400G-AOC-5M16FT 400G QSFP-DD 8 x 50G PAM4 to 4 x 100G QSFP28 4 x 25G NRZ Active Optical Breakout Cable, 5m (16ft)

This 5m (16ft) AOC cable is built for multi-vendor equipment requiring the QSFP-DD to 4x QSFP28-400G-AOC-5M16FT interface. The 400Gbps link uses QSFP-DD to 4x QSFP28 and is supplied as one complete tested assembly.

OEM Part Number: QSFP-DD to 4x QSFP28-400G-AOC-5M16FTHT Part Number: QSFP-DD to 4x QSFP28-400G-AOC-5M16FT

Product Highlights

• HT-manufactured AOC assembly in 5m (16ft)
• 400G connectivity at 400Gbps
• Interface configuration: QSFP-DD to 4x QSFP28
• Fixed length and part number: 5m (16ft), QSFP-DD to 4x QSFP28-400G-AOC-5M16FT
• Cable construction: Breakout AOC
• Maximum power consumption: 10W (QSFP-DD End)5.5W (QSFP28 Per End)
• Minimum bend radius: 30mm

The listed modulation format is QSFP-DD-8x 50G-PAM4QSFP28-4x 25G-NRZ. Both host interfaces must be configured for the same aggregate rate and lane arrangement. A connector that fits mechanically does not by itself guarantee that the remote port supports this encoding or breakout mode.

The rated power consumption is 10W (QSFP-DD End)5.5W (QSFP28 Per End). Include this load in the host-port power and thermal budget, especially in densely populated switches. Maintain front-panel clearance and do not bundle the cable so tightly that it obstructs airflow around the connectors.

This assembly uses OFNP jacket, minimum bend radius 30mm. These mechanical characteristics affect how the cable should be dressed behind the equipment. Avoid sharp edges, excessive ties and repeated tight bends close to the connector boots.

The intended application is determined by the host interface and protocol support. Listed interface and protocol references include QSFP-DD MSA, SFF-8661, IEEE802.3bs-400GAUI-8, IEEE802.3bm-CAUI-4, CMIS 4.0, SFF-8636. Confirm that the host firmware and port configuration support the same operating mode.

The QSFP-DD to 4x QSFP28 configuration divides the high-speed interface into multiple lower-speed connections. Verify the upstream lane assignment, downstream port speeds and breakout setting on the host before connecting the assembly. Each branch must attach to the correct remote interface.

The optical engines and fiber are permanently integrated into this AOC. There are no detachable optical modules to clean or exchange. Handle the complete assembly by its connector housings and cable, and keep both ends matched to the same interface specification.

The 5m (16ft) length gives QSFP-DD to 4x QSFP28-400G-AOC-5M16FT more freedom for adjacent-rack and row-end deployments. The integrated optical assembly should be supported along its route without tight bends or connector pull loads; the AOC specification and host support must still match the intended link.

QSFP-DD to 4x QSFP28-400G-AOC-5M16FT occupies the middle of this family between QSFP-DD to 4x QSFP28-400G-AOC-3M10FT at 3m (10ft) and QSFP-DD to 4x QSFP28-400G-AOC-7M23FT at 7m (23ft). It adds 2m over the shorter option for extra routing clearance, while the next longer version adds another 2m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.

The assembly is configured for equipment that recognizes QSFP-DD to 4x QSFP28-400G-AOC-5M16FT. Before shipment, we inspect both connectors and verify 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 equipment model and software release for a pre-order compatibility review.

When ordering, specify QSFP-DD to 4x QSFP28-400G-AOC-5M16FT, cable length 5m (16ft) and the host platform. This allows our team to verify both the physical assembly and the compatibility requirement before production. Neutral labeling and customer packing lists can be arranged for volume orders.

Quality control includes connector appearance, cable identification and functional verification. Packing materials are selected to keep the connector housings and cable boots from taking impact during transport, and the coil is not compressed into an undersized bundle. Volume orders can include customer-specific labels and packing documentation.

Lead time for ordinary configurations is normally one to three working days, while production quantities are confirmed with the order. We can arrange express courier or economy freight according to destination and carton volume, or hand the shipment to your appointed logistics provider.