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QSFP-DD to 4x QSFP28-200G-DAC-2.5M8FT 200G QSFP-DD 8 x 25G NRZ to 4 x 50G QSFP28 2 x 25G NRZ Passive Copper Breakout Cable, 2.5m (8ft)

QSFP-DD to 4x QSFP28-200G-DAC-2.5M8FT 200G QSFP-DD 8 x 25G NRZ to 4 x 50G QSFP28 2 x 25G NRZ Passive Copper Breakout Cable, 2.5m (8ft)

With a fixed 2.5m (8ft) cable and QSFP-DD to 4x QSFP28, the QSFP-DD to 4x QSFP28-200G-DAC-2.5M8FT compatible assembly simplifies 200G deployment. It is manufactured and tested by HT for multi-vendor equipment.

OEM Part Number: QSFP-DD to 4x QSFP28-200G-DAC-2.5M8FTHT Part Number: QSFP-DD to 4x QSFP28-200G-DAC-2.5M8FT

Product Highlights

  • HT-manufactured DAC assembly in 2.5m (8ft)
  • 200G connectivity at 200G
  • Interface configuration: QSFP-DD to 4x QSFP28
  • Fixed length and part number: 2.5m (8ft), QSFP-DD to 4x QSFP28-200G-DAC-2.5M8FT
  • Conductor specification: 28 AWG
  • Minimum bend radius: 10mm
  • Operating temperature: 0 to 70°C (32 to 158°F)

Specifications

HT Part NumberQSFP-DD to 4x QSFP28-200G-DAC-2.5M8FT
ManufacturerHT
Connector TypeQSFP-DD to 4x QSFP28
Max Data Rate200G
Minimum Bend Radius10mm
Wire AWG28 AWG
Cable Length3m (10ft)
Jacket MaterialPVC
Operating Temperature0 to 70°C (32 to 158°F)
Storage Temperature-40°C to 85°C (-40°F to 185°F)
Modulation FormatNRZ
ProtocolsQSFP-DD MSA Rev. 5.0, CMIS Rev 4.0, IEEE 802.3cd

Signal and Lane Configuration

The listed modulation format is NRZ. 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.

Position Within the Length Range

QSFP-DD to 4x QSFP28-200G-DAC-2.5M8FT occupies the middle of this family between QSFP-DD to 4x QSFP28-200G-DAC-2M7FT at 2m (7ft) and QSFP-DD to 4x QSFP28-200G-DAC-3M10FT at 3m (10ft). It adds 0.5m over the shorter option for extra routing clearance, while the next longer version adds another 0.5m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.

Cable Construction and Routing

This assembly uses 28 AWG conductors, PVC jacket, minimum bend radius 10mm. 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 QSFP-DD MSA Rev. 5.0, CMIS Rev 4.0, IEEE 802.3cd. Confirm that the host firmware and port configuration support the same operating mode.

Breakout Port Mapping

The QSFP-DD to 4x QSFP28 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.

Passive Copper Operation

A passive DAC has no separate optical conversion stage. Its low-power, low-latency operation is useful for short equipment links, but the assembly must remain within the length and signaling mode accepted by both hosts.

Length Selection and Installation Planning

The 2.5m (8ft) version is useful when a two-metre run would leave insufficient working slack. Before installation, check the complete horizontal and vertical path so that QSFP-DD to 4x QSFP28-200G-DAC-2.5M8FT reaches both ports without tension at either connector.

Generic Compatibility and Factory Testing

Compatibility is more than matching the QSFP-DD to 4x QSFP28 shape. This assembly is prepared for hosts expecting QSFP-DD to 4x QSFP28-200G-DAC-2.5M8FT and is checked for identification, stable link behavior and electrical continuity, link stability and diagnostic readouts. We recommend confirming the equipment model and software release for critical deployments or mixed-vendor installations.

Ordering Information

Quote HT part number QSFP-DD to 4x QSFP28-200G-DAC-2.5M8FT with the required quantity. The 2.5m (8ft) 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 2.5m (8ft) 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

Before packing, our team checks the cable jacket, connector boots, latches and identification of each assembly. The cable is then secured in a loose coil and protected against dust and connector impact. Neutral packaging, customer part-number labels and project-specific carton lists can be supplied on request.

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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