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Dell AOC-Q56DD-400G-2M Compatible 400G QSFP-DD 8 x 50G PAM4 Active Optical Cable, 2m (7ft)

Dell AOC-Q56DD-400G-2M Compatible 400G QSFP-DD 8 x 50G PAM4 Active Optical Cable, 2m (7ft)

For short, high-density connections, this AOC cable combines 400G performance with a fixed 2m (7ft) cable run. It corresponds to Dell AOC-Q56DD-400G-2M and uses a factory-terminated active optical link with the optical engines and fiber integrated into the assembly.

OEM Part Number: AOC-Q56DD-400G-2MHT Part Number: AOC-Q56DD-400G-2M

Product Highlights

  • Compatible alternative to Dell AOC-Q56DD-400G-2M
  • 400G connectivity at 400Gbps
  • Interface configuration: QSFP-DD to QSFP-DD
  • Fixed length and part number: 2m (7ft), AOC-Q56DD-400G-2M
  • 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-2M
Dell CompatibleAOC-Q56DD-400G-2M
ManufacturerHT
Form FactorQSFP-DD to QSFP-DD
Max. Data Rate400Gbps
Cable Length2m (7ft)
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.

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

AOC-Q56DD-400G-2M provides 2m (7ft) for connections between separated rack units or nearby equipment positions. Plan the route around cable managers and power cords, keeping the assembly free from connector strain while avoiding a large obstruction in the airflow path.

Position Within the Length Range

AOC-Q56DD-400G-2M occupies the middle of this family between AOC-Q56DD-400G-1M at 1m (3ft) and AOC-Q56DD-400G-3M at 3m (10ft). It adds 1m over the shorter option for extra routing clearance, while the next longer version adds another 1m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.

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.

Dell Compatibility and Factory Testing

Each AOC-Q56DD-400G-2M 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

Use part number AOC-Q56DD-400G-2M for the 2m (7ft) assembly. For mixed-length projects, list each required part number and quantity separately so that every cable can be tested and packed according to its intended installation.

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-2M.

Can the cable be folded to shorten its routing path?

No. Follow the specified minimum bend radius and route the 2m (7ft) 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.

What information should I provide for a compatibility check?

Provide the host manufacturer, equipment model, port type, hardware revision and software release, together with the OEM part number and required quantity.

Quality Assurance and Packaging

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.

Shipping and Lead Time

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.

 

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Please write to sales@huihongfiber.com, we will reply as soon as possible.


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