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OSFP (RHS/Flat Top) to QSFP-DD-400G-AOC-20M66FT 400G OSFP 4 x 100G PAM4 RHS/Flat Top to 400G QSFP-DD 8 x 50G PAM4 Active Optical Cable, 20m (66ft)

OSFP (RHS/Flat Top) to QSFP-DD-400G-AOC-20M66FT 400G OSFP 4 x 100G PAM4 RHS/Flat Top to 400G QSFP-DD 8 x 50G PAM4 Active Optical Cable, 20m (66ft)

Use the OSFP (RHS/Flat Top) to QSFP-DD-400G-AOC-20M66FT compatible assembly where a 400G connection is required between compatible ports. This page covers the 20m (66ft) version only, with its own HT part number, specifications and compatibility verification.

OEM Part Number: OSFP (RHS/Flat Top) to QSFP-DD-400G-AOC-20M66FTHT Part Number: OSFP (RHS/Flat Top) to QSFP-DD-400G-AOC-20M66FT

Product Highlights

  • HT-manufactured AOC assembly in 20m (66ft)
  • 400G connectivity at 400Gbps
  • Interface configuration: OSFP (RHS/Flat Top) to QSFP-DD
  • Fixed length and part number: 20m (66ft), OSFP (RHS/Flat Top) to QSFP-DD-400G-AOC-20M66FT
  • Cable construction: AOC
  • Maximum power consumption: 14W (OSFP End)10W (QSFP-DD End)
  • Minimum bend radius: 30mm
  • Operating temperature: 0 to 70°C (32 to 158°F)

Specifications

HT Part NumberOSFP (RHS/Flat Top) to QSFP-DD-400G-AOC-20M66FT
ManufacturerHT
Form FactorOSFP (RHS/Flat Top) to QSFP-DD
Max. Data Rate400Gbps
Cable Length20m (66ft)
Cable TypeAOC
Wavelength850nm
Minimum Bend Radius30mm
Transmitter TypeVSCEL
Receiver TypePIN
Max. Power Consumption14W (OSFP End)10W (QSFP-DD End)
Modulation FormatOSFP-4x 100G-PAM4QSFP-DD-8x 50G-PAM4
CDR (Clock and Data Recovery)No
Jacket MaterialOFNP
DDM/DOMSupported
Commercial Temperature Range0 to 70°C (32 to 158°F)
ProtocolsOSFP MSA, QSFP-DD MSA, CMIS 4.0, IEEE 802.3ck-400GAUI-4, IEEE 802.3bs-400GAUI-8

Signal and Lane Configuration

The listed modulation format is OSFP-4x 100G-PAM4QSFP-DD-8x 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.

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 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.

Position Within the Length Range

OSFP (RHS/Flat Top) to QSFP-DD-400G-AOC-20M66FT occupies the middle of this family between OSFP (RHS/Flat Top) to QSFP-DD-400G-AOC-15M49FT at 15m (49ft) and OSFP (RHS/Flat Top) to QSFP-DD-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.

Power and Thermal Planning

The rated power consumption is 14W (OSFP End)10W (QSFP-DD 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 determined by the host interface and protocol support. Listed interface and protocol references include OSFP MSA, QSFP-DD MSA, CMIS 4.0, IEEE 802.3ck-400GAUI-4, IEEE 802.3bs-400GAUI-8. Confirm that the host firmware and port configuration support the same operating mode.

Generic Compatibility and Factory Testing

The assembly is configured for equipment that recognizes OSFP (RHS/Flat Top) to QSFP-DD-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.

Ordering Information

Quote HT part number OSFP (RHS/Flat Top) to QSFP-DD-400G-AOC-20M66FT with the required quantity. The 20m (66ft) length is fixed for this part number; if a different length is needed, select its corresponding page and OEM reference from the length list above. Standard HT labels and project-specific packaging are available.

Frequently Asked Questions

Is this an original equipment manufacturer cable?

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

Can the cable be folded to shorten its routing path?

No. Follow the specified minimum bend radius and route the 20m (66ft) 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

Quality control includes connector appearance, cable identification and functional verification. Packing materials are selected to keep the connector housings and cable boots from taking impact during transport, and the coil is not compressed into an undersized bundle. Volume orders can include customer-specific labels and packing documentation.

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


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