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QSFP-DD to 4x QSFP56-400G-AOC-2M7FT 400G QSFP-DD 8 x 50G PAM4 to 4 x 100G QSFP56 2 x 50G PAM4 Active Optical Breakout Cable, 2m (7ft)

QSFP-DD to 4x QSFP56-400G-AOC-2M7FT 400G QSFP-DD 8 x 50G PAM4 to 4 x 100G QSFP56 2 x 50G PAM4 Active Optical Breakout Cable, 2m (7ft)

For short, high-density connections, this AOC cable combines 400G performance with a fixed 2m (7ft) cable run. It corresponds to Generic QSFP-DD to 4x QSFP56-400G-AOC-2M7FT and uses a factory-terminated active optical link with the optical engines and fiber integrated into the assembly.

OEM Part Number: QSFP-DD to 4x QSFP56-400G-AOC-2M7FTHT Part Number: QSFP-DD to 4x QSFP56-400G-AOC-2M7FT

Product Highlights

  • HT-manufactured AOC assembly in 2m (7ft)
  • 400G connectivity at 400Gbps
  • Interface configuration: QSFP-DD to 4x QSFP56
  • Fixed length and part number: 2m (7ft), QSFP-DD to 4x QSFP56-400G-AOC-2M7FT
  • Cable construction: OM3
  • Maximum power consumption: 12W (QSFP-DD End)3.5W (QSFP56 Per End)
  • Minimum bend radius: 30mm
  • Operating temperature: 0 to 70°C (32 to 158°F)

Specifications

HT Part NumberQSFP-DD to 4x QSFP56-400G-AOC-2M7FT
ManufacturerHT
Form FactorQSFP-DD to 4x QSFP56
Max. Data Rate400Gbps
Cable Length2m (7ft)
Cable TypeOM3
Wavelength850nm
Minimum Bend Radius30mm
Transmitter TypeVSCEL
Receiver TypePIN
Max. Power Consumption12W (QSFP-DD End)3.5W (QSFP56 Per End)
Jacket MaterialOFNP
CDR (Clock and Data Recovery)TX & RX Built-in CDR
Modulation FormatQSFP-DD-8x 50G-PAM4QSFP56-2x 50G-PAM4
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-Rev4.0, SFF-8024, IEEE 802.3bs Annex120E
Inbuilt FECYes
Application400G Ethernet

Signal and Lane Configuration

The listed modulation format is QSFP-DD-8x 50G-PAM4QSFP56-2x 50G-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 400G Ethernet. Listed interface and protocol references include IEEE 802.3cd, OIF-CEI-04.0, QSFP-DD MSA, QSFP-DD-CMIS-Rev4.0, SFF-8024, IEEE 802.3bs Annex120E. Confirm that the host firmware and port configuration support the same operating mode.

Breakout Port Mapping

The QSFP-DD to 4x QSFP56 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.

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

QSFP-DD to 4x QSFP56-400G-AOC-2M7FT 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

QSFP-DD to 4x QSFP56-400G-AOC-2M7FT occupies the middle of this family between QSFP-DD to 4x QSFP56-400G-AOC-1M3FT at 1m (3ft) and QSFP-DD to 4x QSFP56-400G-AOC-3M10FT 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 12W (QSFP-DD End)3.5W (QSFP56 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.

Generic Compatibility and Factory Testing

Compatibility is more than matching the QSFP-DD to 4x QSFP56 shape. This assembly is prepared for hosts expecting QSFP-DD to 4x QSFP56-400G-AOC-2M7FT and is checked for identification, stable link behavior and optical link operation, receive activity and diagnostic readouts. We recommend confirming the equipment model and software release for critical deployments or mixed-vendor installations.

Ordering Information

When ordering, specify QSFP-DD to 4x QSFP56-400G-AOC-2M7FT, cable length 2m (7ft) 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.

Frequently Asked Questions

Is this an original equipment manufacturer cable?

No. It is manufactured by HT under our own manufacturer identity.

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.

Does this page include more than one cable length?

No. This page is dedicated to 2m (7ft) and part number QSFP-DD to 4x QSFP56-400G-AOC-2M7FT. Other lengths have their own part numbers and product pages.

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.

Quality Assurance and Packaging

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.

Shipping and Lead Time

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.

 

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


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Email:info@huihongfiber.com
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