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Dell AOC-Q56DD-400G-15M Compatible 400G QSFP-DD 8 x 50G PAM4 Active Optical Cable, 15m (49ft)

Dell AOC-Q56DD-400G-15M Compatible 400G QSFP-DD 8 x 50G PAM4 Active Optical Cable, 15m (49ft)

Use the AOC-Q56DD-400G-15M compatible assembly where a 400G connection is required between compatible ports. This page covers the 15m (49ft) version only, with its own HT part number, specifications and compatibility verification.

OEM Part Number: AOC-Q56DD-400G-15MHT Part Number: AOC-Q56DD-400G-15M

Product Highlights

  • Compatible alternative to Dell AOC-Q56DD-400G-15M
  • 400G connectivity at 400Gbps
  • Interface configuration: QSFP-DD to QSFP-DD
  • Fixed length and part number: 15m (49ft), AOC-Q56DD-400G-15M
  • Cable construction: OM4
  • Maximum power consumption: 8W Per End
  • Minimum bend radius: 30mm
  • Operating temperature: 0 to 70°C (32 to 158°F)

Specifications

HT Part NumberAOC-Q56DD-400G-15M
Dell CompatibleAOC-Q56DD-400G-15M
ManufacturerHT
Form FactorQSFP-DD to QSFP-DD
Max. Data Rate400Gbps
Cable Length15m (49ft)
Cable TypeOM4
Wavelength850nm
Minimum Bend Radius30mm
Transmitter TypeVSCEL
Receiver Type850nm PIN
Max. Power Consumption8W Per End
Jacket MaterialOFNP
CDR (Clock and Data Recovery)TX & RX Built-in CDR
Modulation FormatPAM4
DDM/DOMSupported
Commercial Temperature Range0 to 70°C (32 to 158°F)
ProtocolsIEEE 802.3cd, OIF-CEI-04.0, QSFP-DD MSA,QSFP-DD-CMIS-rev4p0
Inbuilt FECNo
Application8x 50G-PAM4

Signal and Lane Configuration

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.

Power and Thermal Planning

The rated power consumption is 8W 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.

Cable Construction and Routing

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.

Network and Protocol Considerations

The intended application is 8x 50G-PAM4. Listed interface and protocol references include IEEE 802.3cd, OIF-CEI-04.0, QSFP-DD MSA,QSFP-DD-CMIS-rev4p0. Confirm that the host firmware and port configuration support the same operating mode.

Integrated Optical Assembly

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.

Length Selection and Installation Planning

The extended 15m (49ft) 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.

Position Within the Length Range

AOC-Q56DD-400G-15M occupies the middle of this family between AOC-Q56DD-400G-10M at 10m (33ft) and AOC-Q56DD-400G-20M at 20m (66ft). 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.

Dell Compatibility and Factory Testing

Each AOC-Q56DD-400G-15M compatible cable is powered up on a suitable test interface rather than checked only for continuity. We confirm the expected identification and observe optical link operation, receive activity and diagnostic readouts. Because operating systems can apply different qualification rules by hardware revision, the intended Dell platform should be included with the order.

Ordering Information

This product is ordered as AOC-Q56DD-400G-15M in 15m (49ft). Include the equipment model and software release if you would like a pre-order compatibility review. Other lengths use different part numbers and should not be substituted into the same order line.

Frequently Asked Questions

Is this an original Dell cable?

No. It is an HT-manufactured compatible alternative for equipment that specifies Dell AOC-Q56DD-400G-15M.

Are separate optical modules required?

No. The connectors and cable form one complete direct-attach assembly. Do not attempt to detach or replace either end.

Can the cable be folded to shorten its routing path?

No. Follow the specified minimum bend radius and route the 15m (49ft) assembly without tight folds, sharp edges or excessive cable ties.

Can I use it between different speeds or interface types?

Only when both hosts explicitly support the same data rate, lane mapping and breakout configuration. Mechanical fit alone is not proof of interoperability.

Quality Assurance and Packaging

Every AOC-Q56DD-400G-15M compatible assembly undergoes link testing, compatibility verification and visual inspection. The 15m (49ft) cable is coiled without exceeding its minimum bend radius, fitted with connector protection and packed in an anti-static bag or protective tray before cartoning. Project labels and packing lists are available for volume orders.

Shipping and Lead Time

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.

 

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