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OSFP (RHS/Flat Top) to 2x QSFP56-400G-AOC-20M66FT 400G OSFP 8 x 50G PAM4 RHS/Flat Top to 2 x 200G QSFP56 4 x 50G PAM4 Active Optical Breakout Cable, 20m (66ft)

OSFP (RHS/Flat Top) to 2x QSFP56-400G-AOC-20M66FT 400G OSFP 8 x 50G PAM4 RHS/Flat Top to 2 x 200G QSFP56 4 x 50G PAM4 Active Optical Breakout Cable, 20m (66ft)

This 20m (66ft) AOC cable is built for multi-vendor equipment requiring the OSFP (RHS/Flat Top) to 2x QSFP56-400G-AOC-20M66FT interface. The 400Gbps link uses OSFP (RHS/Flat Top) to 2x QSFP56 and is supplied as one complete tested assembly.

OEM Part Number: OSFP (RHS/Flat Top) to 2x QSFP56-400G-AOC-20M66FTHT Part Number: OSFP (RHS/Flat Top) to 2x QSFP56-400G-AOC-20M66FT

Product Highlights

  • HT-manufactured AOC assembly in 20m (66ft)
  • 400G connectivity at 400Gbps
  • Interface configuration: OSFP (RHS/Flat Top) to 2x QSFP56
  • Fixed length and part number: 20m (66ft), OSFP (RHS/Flat Top) to 2x QSFP56-400G-AOC-20M66FT
  • Cable construction: Breakout AOC
  • Maximum power consumption: 10W (OSFP End) 5.5W (QSFP56 Per End)
  • Minimum bend radius: 30mm
  • Operating temperature: 0 to 70°C (32 to 158°F)

Specifications

HT Part NumberOSFP (RHS/Flat Top) to 2x QSFP56-400G-AOC-20M66FT
ManufacturerHT
Form FactorOSFP (RHS/Flat Top) to 2x QSFP56
Max. Data Rate400Gbps
Cable Length20m (66ft)
Cable TypeBreakout AOC
Wavelength850nm
Minimum Bend Radius30mm
Transmitter TypeVSCEL
Receiver TypePIN
Max. Power Consumption10W (OSFP End) 5.5W (QSFP56 Per End)
Jacket MaterialOFNP
CDR (Clock and Data Recovery)TX & RX Built-in CDR
Modulation Format8x 50G-PAM4 to Dual 4x 50G-PAM4
DDM/DOMSupported
Commercial Temperature Range0 to 70°C (32 to 158°F)
ProtocolsCMIS 4.0, SFF-8636,IEEE 802.3 bs-2*200GAUI-4, IEEE 802.3 bs-200GAUI-4, OSFP MSA, SFF-8679, SFF-8661

Signal and Lane Configuration

The listed modulation format is 8x 50G-PAM4 to Dual 4x 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.

Breakout Port Mapping

The OSFP (RHS/Flat Top) to 2x 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

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 2x QSFP56-400G-AOC-20M66FT occupies the middle of this family between OSFP (RHS/Flat Top) to 2x QSFP56-400G-AOC-15M49FT at 15m (49ft) and OSFP (RHS/Flat Top) to 2x QSFP56-400G-AOC-30M98FT at 30m (98ft). It adds 5m over the shorter option for extra routing clearance, while the next longer version adds another 10m. 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 10W (OSFP End) 5.5W (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.

Network and Protocol Considerations

The intended application is determined by the host interface and protocol support. Listed interface and protocol references include CMIS 4.0, SFF-8636,IEEE 802.3 bs-2*200GAUI-4, IEEE 802.3 bs-200GAUI-4, OSFP MSA, SFF-8679, SFF-8661. Confirm that the host firmware and port configuration support the same operating mode.

Generic Compatibility and Factory Testing

Our compatibility setup for Generic OSFP (RHS/Flat Top) to 2x QSFP56-400G-AOC-20M66FT is checked together with the physical 20m (66ft) 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.

Ordering Information

Use part number OSFP (RHS/Flat Top) to 2x QSFP56-400G-AOC-20M66FT for the 20m (66ft) 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 equipment manufacturer cable?

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

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.

Does this page include more than one cable length?

No. This page is dedicated to 20m (66ft) and part number OSFP (RHS/Flat Top) to 2x QSFP56-400G-AOC-20M66FT. Other lengths have their own part numbers and product pages.

Quality Assurance and Packaging

HT inspects and tests every completed cable before it enters finished stock. Protective caps or covers are fitted where applicable, followed by anti-static or tray packaging and an outer carton. Custom labels can cross-reference the customer part number, OSFP (RHS/Flat Top) to 2x QSFP56-400G-AOC-20M66FT and the 20m (66ft) length for easier inventory control.

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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