Which connector configurations are available in the 400G OSFP & QSFP-DD AOC category?

Two configurations are available. QDD-QDD-A uses 400G QSFP-DD connectors at both ends, while O400-QDD-A uses one 400G flat-top OSFP connector and one 400G QSFP-DD connector.

Can QDD-QDD-A establish a direct 400G connection between two compatible QSFP-DD ports?

Yes. QDD-QDD-A is a straight-through 400G active optical cable with QSFP-DD connectors at both ends, providing a direct optical link between two compatible 400G QSFP-DD ports.

Can O400-QDD-A directly connect a 400G flat-top OSFP port to a 400G QSFP-DD port?

Yes. O400-QDD-A has one 400G flat-top OSFP end and one 400G QSFP-DD end, providing a direct cross-form-factor optical link between compatible 400G ports.

What is the practical connection difference between QDD-QDD-A and O400-QDD-A?

The endpoint form factors are different. QDD-QDD-A is a QSFP-DD-to-QSFP-DD cable for same-interface links, whereas O400-QDD-A is a flat-top OSFP-to-QSFP-DD cable for devices using different 400G port types.

What cable lengths are available for QDD-QDD-A and O400-QDD-A?

From 1m to 50m. Both models have the same stated length range, allowing the connector configuration to be selected according to the device ports without changing the available distance range.

Do the cables in the 400G OSFP & QSFP-DD AOC category provide breakout connections?

No. QDD-QDD-A and O400-QDD-A are straight-through 400G AOCs. Each cable connects one 400G port to one 400G port and does not split the link into multiple lower-speed connectors.

Can QDD-QDD-A or O400-QDD-A connect two devices that both use OSFP ports?

No. QDD-QDD-A requires QSFP-DD ports at both ends, while O400-QDD-A requires one flat-top OSFP port and one QSFP-DD port. The 400G OSFP & QSFP-DD AOC category does not include an OSFP-to-OSFP cable.

What cabling benefits does the 400G OSFP & QSFP-DD AOC category provide in high-density racks?

It provides slim, lightweight cable assemblies. The stated design supports simpler cable management and improved airflow in high-density cloud-computing and supercomputing racks while maintaining direct 400G port-to-port connections.

400G OSFP & QSFP-DD AOC

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400G QSFP-DD to 400G QSFP-DD Active Optical Cable

QDD-QDD-A

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- 400Gbps to 400Gbps
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400G OSFP Flat Top to 400G QSFP-DD Active Optical Cable

O400-QDD-A

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US$880.00
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400G OSFP & QSFP-DD AOC Overview

The 400G OSFP & QSFP-DD AOC category contains two active optical cables for 400G connections in cloud computing and supercomputing environments. The series includes one QSFP-DD-to-QSFP-DD cable and one flat-top OSFP-to-QSFP-DD cable, covering both same-interface and cross-form-factor links. Available in lengths from 1m to 50m, these slim, lightweight cable assemblies support simplified cable management and improved airflow in high-density racks.

QDD-QDD-A is a 1–50m active optical cable with 400G QSFP-DD connectors at both ends. It provides a straight-through 400G optical link between two QSFP-DD ports for cloud computing, supercomputing, and other high-density system connections.

O400-QDD-A is a 1–50m active optical cable connecting one 400G flat-top OSFP port to one 400G QSFP-DD port. Its cross-form-factor structure supports direct 400G optical connections between devices using different pluggable interfaces in high-density cloud and supercomputing systems.

Which connector configurations are available in the 400G OSFP & QSFP-DD AOC category?: Two configurations are available. QDD-QDD-A uses 400G QSFP-DD connectors at both ends, while O400-QDD-A uses one 400G flat-top OSFP connector and one 400G QSFP-DD connector.
Can QDD-QDD-A establish a direct 400G connection between two compatible QSFP-DD ports?: Yes. QDD-QDD-A is a straight-through 400G active optical cable with QSFP-DD connectors at both ends, providing a direct optical link between two compatible 400G QSFP-DD ports.
Can O400-QDD-A directly connect a 400G flat-top OSFP port to a 400G QSFP-DD port?: Yes. O400-QDD-A has one 400G flat-top OSFP end and one 400G QSFP-DD end, providing a direct cross-form-factor optical link between compatible 400G ports.
What is the practical connection difference between QDD-QDD-A and O400-QDD-A?: The endpoint form factors are different. QDD-QDD-A is a QSFP-DD-to-QSFP-DD cable for same-interface links, whereas O400-QDD-A is a flat-top OSFP-to-QSFP-DD cable for devices using different 400G port types.
What cable lengths are available for QDD-QDD-A and O400-QDD-A?: From 1m to 50m. Both models have the same stated length range, allowing the connector configuration to be selected according to the device ports without changing the available distance range.
Do the cables in the 400G OSFP & QSFP-DD AOC category provide breakout connections?: No. QDD-QDD-A and O400-QDD-A are straight-through 400G AOCs. Each cable connects one 400G port to one 400G port and does not split the link into multiple lower-speed connectors.
Can QDD-QDD-A or O400-QDD-A connect two devices that both use OSFP ports?: No. QDD-QDD-A requires QSFP-DD ports at both ends, while O400-QDD-A requires one flat-top OSFP port and one QSFP-DD port. The 400G OSFP & QSFP-DD AOC category does not include an OSFP-to-OSFP cable.
What cabling benefits does the 400G OSFP & QSFP-DD AOC category provide in high-density racks?: It provides slim, lightweight cable assemblies. The stated design supports simpler cable management and improved airflow in high-density cloud-computing and supercomputing racks while maintaining direct 400G port-to-port connections.