QSFP-DD to 8x 50G SFP56-400G-AOC-25M82FT 400G QSFP-DD 8 x 50G PAM4 to 8 x 50G SFP56 25G NRZ Active Optical Breakout Cable, 25m (82ft)

Use the QSFP-DD to 8x 50G SFP56-400G-AOC-25M82FT compatible assembly where a 400G connection is required between compatible ports. This page covers the 25m (82ft) version only, with its own HT part number, specifications and compatibility verification.

OEM Part Number: QSFP-DD to 8x 50G SFP56-400G-AOC-25M82FTHT Part Number: QSFP-DD to 8x 50G SFP56-400G-AOC-25M82FT

Product Highlights

• HT-manufactured AOC assembly in 25m (82ft)
• 400G connectivity at 425Gbps (8x 53.125GGbps)
• Interface configuration: QSFP-DD to 8x 50G SFP56
• Fixed length and part number: 25m (82ft), QSFP-DD to 8x 50G SFP56-400G-AOC-25M82FT
• 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 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 extended 25m (82ft) 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-25M82FT occupies the middle of this family between QSFP-DD to 8x 50G SFP56-400G-AOC-20M66FT at 20m (66ft) and QSFP-DD to 8x 50G SFP56-400G-AOC-30M98FT at 30m (98ft). 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.

Our compatibility setup for Generic QSFP-DD to 8x 50G SFP56-400G-AOC-25M82FT is checked together with the physical 25m (82ft) assembly. Factory verification covers connector condition, host identification, error-free link establishment and optical link operation, receive activity and diagnostic readouts. Providing the exact host model and firmware release helps us identify platform-specific requirements before production.

When ordering, specify QSFP-DD to 8x 50G SFP56-400G-AOC-25M82FT, cable length 25m (82ft) 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.

Production inspection covers both physical condition and a live link check. Connector ends receive individual protection, and the completed assembly is packed without tight ties or sharp bends. For multi-length projects, cartons can be separated and labelled by OEM part number to simplify installation on site.

Stock items are generally dispatched within one to three working days after order confirmation. DHL, UPS, FedEx, TNT and EMS are available for international delivery; larger consolidated orders can move by air or sea freight. Customer courier accounts and nominated forwarders are accepted.