QSFP-DD to 8x 50G SFP56-400G-AOC-20M66FT 400G QSFP-DD 8 x 50G PAM4 to 8 x 50G SFP56 25G NRZ Active Optical Breakout Cable, 20m (66ft)

With a fixed 20m (66ft) cable and QSFP-DD to 8x 50G SFP56, the QSFP-DD to 8x 50G SFP56-400G-AOC-20M66FT compatible assembly simplifies 400G deployment. It is manufactured and tested by HT for multi-vendor equipment.

OEM Part Number: QSFP-DD to 8x 50G SFP56-400G-AOC-20M66FTHT Part Number: QSFP-DD to 8x 50G SFP56-400G-AOC-20M66FT

Product Highlights

• HT-manufactured AOC assembly in 20m (66ft)
• 400G connectivity at 425Gbps (8x 53.125GGbps)
• Interface configuration: QSFP-DD to 8x 50G SFP56
• Fixed length and part number: 20m (66ft), QSFP-DD to 8x 50G SFP56-400G-AOC-20M66FT
• Cable construction: OM3
• Maximum power consumption: 10W (QSFP-DD End) 3W (SFP56 Per End)
• Minimum bend radius: 30mm

The listed modulation format is PAM4. 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 extended 20m (66ft) reach supports connections across adjacent racks or between separated equipment rows. Secure the cable along its route, protect both ends from pull loads and preserve ventilation. The integrated AOC construction avoids a chain of separate modules and patch leads.

QSFP-DD to 8x 50G SFP56-400G-AOC-20M66FT occupies the middle of this family between QSFP-DD to 8x 50G SFP56-400G-AOC-15M49FT at 15m (49ft) and QSFP-DD to 8x 50G SFP56-400G-AOC-25M82FT at 25m (82ft). It adds 5m over the shorter option for extra routing clearance, while the next longer version adds another 5m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.

The rated power consumption is 10W (QSFP-DD End) 3W (SFP56 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, SFP56 MSA, IEEE 802.3cd. Confirm that the host firmware and port configuration support the same operating mode.

The QSFP-DD to 8x 50G SFP56 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 assembly is configured for equipment that recognizes QSFP-DD to 8x 50G SFP56-400G-AOC-20M66FT. 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 8x 50G SFP56-400G-AOC-20M66FT, cable length 20m (66ft) 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.

Before packing, our team checks the cable jacket, connector boots, latches and identification of each assembly. The cable is then secured in a loose coil and protected against dust and connector impact. Neutral packaging, customer part-number labels and project-specific carton lists can be supplied on request.

Available stock is usually packed and handed to the carrier within one to three working days. Delivery can be arranged by international express, air cargo or sea freight, with tracking details supplied after dispatch. Freight-collect shipments and delivery to a customer warehouse or forwarder can also be coordinated.