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Broadcom OFL-400G-QDD8xPPC Compatible 400G OSFP 8 x 50G PAM4 RHS/Flat Top to 400G QSFP-DD 8 x 50G PAM4 Passive Copper Twinax Cable

Broadcom OFL-400G-QDD8xPPC Compatible 400G OSFP 8 x 50G PAM4 RHS/Flat Top to 400G QSFP-DD 8 x 50G PAM4 Passive Copper Twinax Cable

Use this DAC cable where a 400G link is required between compatible OSFP (RHS/Flat Top) to QSFP-DD ports. This HT version corresponds to Broadcom OFL-400G-QDD8xPPC and covers 3m (10ft); electrical or optical construction follows the DAC specification rather than a detachable transceiver-and-patch-cord arrangement.

Series Part Number: OFL-400G-QDD8xPPCHT Part Number: OFL-400G-QDD8xPPC

Product Highlights

  • HT-manufactured compatible alternative for Broadcom OFL-400G-QDD8xPPC
  • 400G aggregate connectivity at 400Gbps
  • Interface configuration: OSFP (RHS/Flat Top) to QSFP-DD
  • Passive DAC / Copper
  • Length configurations covered: 3m (10ft)
  • Conductor specification: 28AWG
  • Power consumption: 0.1W (OSFP End) 0.1W (QSFP-DD End)
  • Operating temperature: 0 to 70°C (32 to 158°F)

Available Length Configurations

This series page covers the following verified source length configurations: 3m (10ft). Each documented length-specific OEM reference is treated as its own product configuration; follow the corresponding product link where available. Select the required length when requesting a quotation; custom project lengths are available for discussion.

Compatible OEM Part Numbers

  • OFL-400G-QDD8xPPC03

Specifications

HT Part NumberOFL-400G-QDD8xPPC
ManufacturerHT
Form FactorOSFP (RHS/Flat Top) to QSFP-DD
Max. Data Rate400Gbps
MediaCopper
Cable TypePassive DAC
Minimum Bend Radius40.5mm
Wire AWG28AWG
Cable Length3m (10ft)
Jacket MaterialPVC
Max. Power Consumption0.1W (OSFP End) 0.1W (QSFP-DD End)
Modulation FormatOSFP-8x 50G-PAM4QSFP-DD-8x 50G-PAM4
DDM/DOMNot Supported
Commercial Temperature Range0 to 70°C (32 to 158°F)
ProtocolsIEEE 802.3bs, OSFP MSA, QSFP-DD MSA, CMIS 4.0

Applications and Deployment

Passive DAC assemblies are normally used for short switch-to-switch, switch-to-server and rack-adjacent links. They draw very little power and avoid separate optical components, but the selected length must remain within the host and cable specification.

The OSFP (RHS/Flat Top) to QSFP-DD interface and 400G data rate must match the equipment at both ends. For breakout versions, confirm the lane mapping and the speed of every downstream port; matching connector shapes alone does not establish interoperability.

Broadcom Compatibility and Testing

The assembly is configured for equipment that recognizes the OFL-400G-QDD8xPPC series. Before shipment, we check connector identification, link establishment and electrical link stability, signal integrity and diagnostic readouts. Host hardware and firmware revisions can affect third-party cable acceptance, so customers can provide the switch, server or accelerator model and software release for a pre-order compatibility review.

Ordering Information

Quote HT part number OFL-400G-QDD8xPPC, the required length from 3m (10ft), and the OEM part number used by your equipment. The length-specific OEM identifiers above identify the exact product configurations so each reference can be reviewed and ordered separately.

Frequently Asked Questions

Is this an original Broadcom cable?

No. It is an HT-manufactured compatible cable for equipment that specifies OFL-400G-QDD8xPPC, not an original Broadcom-branded product.

Which lengths are covered by this product page?

This series page covers 3m (10ft). These are the length configurations identified from the source product records; contact us if a different project length is required.

Can this DAC cable connect different port speeds or breakout configurations?

Only when both host ports support the exact aggregate rate, lane mapping and breakout mode stated in the specifications. Confirm the equipment models before connecting unlike interface versions.

Does the cable need separate modules at each end?

No. The connector ends and cable form one complete direct-attach assembly. Do not attempt to detach the ends or treat the assembly as two independent modules.

Quality Assurance and Packaging

Every DAC assembly undergoes continuity and link testing, compatibility verification and a visual inspection of both connector ends. Cables are coiled without exceeding their minimum bend radius, fitted with connector protection and packed in anti-static bags or protective trays before cartoning. Project labels and packing lists are available for volume orders.

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.

 

Get a quick quote

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


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