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HPE Aruba QDD56-400G-O112RAO Compatible 400G OSFP 4 x 100G PAM4 RHS/Flat Top to 400G QSFP-DD 8 x 50G PAM4 Active Optical Cable

HPE Aruba QDD56-400G-O112RAO Compatible 400G OSFP 4 x 100G PAM4 RHS/Flat Top to 400G QSFP-DD 8 x 50G PAM4 Active Optical Cable

This HPE Aruba QDD56-400G-O112RAO compatible cable series provides 400G connectivity through a OSFP (RHS/Flat Top) to QSFP-DD configuration. It is a complete optical assembly with permanently attached ends and integrated fiber. The page brings together the series specifications, compatibility guidance and direct links to the individual length and OEM part-number pages used for ordering.

Series Part Number: QDD56-400G-O112RAOHT Part Number: QDD56-400G-O112RAO

Product Highlights

  • HT-manufactured compatible alternative for HPE Aruba QDD56-400G-O112RAO
  • 400G aggregate connectivity at 400Gbps
  • Interface configuration: OSFP (RHS/Flat Top) to QSFP-DD
  • AOC
  • Length configurations covered: 30m (98ft)
  • Power consumption: 14W (OSFP End)10W (QSFP-DD End)
  • Operating temperature: 0 to 70°C (32 to 158°F)

Available Lengths and Corresponding Part Numbers

The documented series configuration is 30m (98ft). Use the relevant OEM reference below together with the HT identity and required length when requesting a quotation. If another length carries a different OEM part number, it must be reviewed and ordered as that distinct configuration.

Compatible OEM Part Numbers

  • QDD56-400G-O112RAO30

Specifications

HT Part NumberQDD56-400G-O112RAO
ManufacturerHT
Form FactorOSFP (RHS/Flat Top) to QSFP-DD
Max. Data Rate400Gbps
Cable Length Options Covered30m (98ft)
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

Applications and Deployment

Active optical cables integrate optical engines and fiber into a single factory-terminated link. They provide a lighter, longer-reach alternative to copper direct attach without requiring separate transceiver and patch-cord selection. The complete assembly should be routed with bend protection and connected only between compatible optical standards and port modes. For this series, the listed interface is OSFP (RHS/Flat Top) to QSFP-DD and the aggregate rate is 400G.

HPE Aruba Compatibility and Factory Testing

Verification covers the physical connectors, expected host identity and an operating link with available diagnostic indications. We distinguish this complete check from a simple continuity test. Platform model and software release can be reviewed in advance where the installation has strict documentation or change-control requirements. Series-level inspection is followed by the exact length and OEM configuration selected for dispatch. Functional verification includes link establishment and diagnostic indications where the host exposes them.

Cable Construction and Routing

For this assembly, the jacket material is OFNP; the minimum bend radius is 30mm; the operating temperature is 0 to 70°C (32 to 158°F); the power consumption is 14W (OSFP End)10W (QSFP-DD End). These parameters belong in the installation review rather than being treated as catalogue trivia. Route the cable through its intended managers without tension, avoid pressure close to the connector boots and leave enough space to operate the latches. Any service loop must respect the stated bend limit.

Structured Pathways and Serviceability

Treat the direct-attach assembly as part of the permanent pathway plan even when the link is expected to be temporary. Follow the intended horizontal and vertical managers, maintain the specified bend radius and leave service access around both ports. A small, supported service allowance is preferable to excess slack concealed inside a rack or placed under cable-tie pressure. For this series, keep the interface rate, AOC construction and length-specific OEM reference together throughout that review.

Ordering Information

Include the part number, fixed length, quantity and required pathway or rack grouping in the order information. The host model and firmware release are useful for change-controlled deployments. Different lengths should remain separate order lines so delivered labels and packing records agree with the pathway plan. For this series, follow the corresponding length link, quote that exact OEM part number and keep different lengths on separate order lines. HT part number QDD56-400G-O112RAO identifies the product family; the linked page provides the final length-specific identity.

Shipping and Lead Time

Standard configurations normally ship within one to three working days, with production lead times confirmed for larger quantities. International courier, air freight and sea freight are available; customer courier accounts and nominated forwarders are accepted.

Quality Assurance and Packaging

After connector inspection and link verification, the assembly is coiled without tight bends and packed with end protection. Labels can cross-reference the customer cable schedule, OEM part number and length. This supports both receiving checks and later moves, adds or changes. Both connector ends are inspected as part of the complete assembly, and protective packing is selected to avoid tight bends during transport and storage.

Frequently Asked Questions

Is this an original HPE Aruba cable?

No. It is an HT-manufactured compatible cable for equipment that specifies QDD56-400G-O112RAO, not an original HPE Aruba-branded product.

Are different lengths and OEM part numbers separate products?

Yes. Where a length has its own OEM reference, follow the corresponding link above and order that exact part number on its own line. Do not substitute another length only because the connector arrangement is the same.

Does this AOC cable require separate modules at each end?

No. The connector ends and cable form one complete direct-attach assembly. The ends are not detachable standalone transceivers, and the complete product is tested together.

What information helps confirm compatibility?

Provide the equipment manufacturer and model, port type, hardware revision and software release, together with the required OEM reference, length and quantity. Breakout projects should also identify the intended lane configuration.

New Zealand Fiber Optics

New Zealand Fiber Optics

New Zealand Service center: New Zealand 0632, Auckland.

Factory in Asia: Shangxue Industrial Area, Shenzhen

Product Datasheets

For PDF documents of products data sheet or any general inquiry, email info@huihongfiber.com and we will send you the details.

Customer Support

For customer support, please email sales@huihongfiber.com; our Auckland service team will respond promptly.