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Dell DAC-QSFP-2QSFP28-50G-2M Compatible 100G QSFP28 4 x 25G NRZ to 2 x 50G QSFP28 2 x 25G NRZ Passive Copper Breakout Cable, 2m (7ft)

Dell DAC-QSFP-2QSFP28-50G-2M Compatible 100G QSFP28 4 x 25G NRZ to 2 x 50G QSFP28 2 x 25G NRZ Passive Copper Breakout Cable, 2m (7ft)

This HT cable matches the DAC-QSFP-2QSFP28-50G-2M requirement for Dell equipment. The 2m (7ft) assembly supports 100G operation and provides a factory-terminated passive copper link without separate optical modules or patch cords; its complete electrical and mechanical details are listed below.

OEM Part Number: DAC-QSFP-2QSFP28-50G-2MHT Part Number: DAC-QSFP-2QSFP28-50G-2M

Product Highlights

  • Compatible alternative to Dell DAC-QSFP-2QSFP28-50G-2M
  • 100G connectivity at 100Gbps
  • Interface configuration: QSFP28 to 2x SFP28
  • Fixed length and part number: 2m (7ft), DAC-QSFP-2QSFP28-50G-2M
  • Cable construction: Passive Breakout DAC
  • Conductor specification: 30AWG
  • Maximum power consumption: 0.5W
  • Minimum bend radius: 10D/5D (Dynamic/Static)

Specifications

HT Part NumberDAC-QSFP-2QSFP28-50G-2M
Dell CompatibleDAC-QSFP-2QSFP28-50G-2M
ManufacturerHT
Form FactorQSFP28 to 2x SFP28
Max. Data Rate100Gbps
MediaCopper
Cable TypePassive Breakout DAC
Cable Length2m (7ft)
Jacket MaterialPVC (OFNR)
Minimum Bend Radius10D/5D (Dynamic/Static)
Wire AWG30AWG
Max. Power Consumption0.5W
Modulation FormatQSFP28-4x 25G-NRZ SFP28-2x 25G-NRZ
Commercial Temperature Range0-70℃(32 to 158°F)
Application100G/50G Ethernet, 128G Fibre Channel
ProtocolsIEEE 802.3, QSFP28 MSA, SFP-8665, SFF-8636

Signal and Lane Configuration

The listed modulation format is QSFP28-4x 25G-NRZ SFP28-2x 25G-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.

Breakout Port Mapping

The QSFP28 to 2x SFP28 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

DAC-QSFP-2QSFP28-50G-2M provides 2m (7ft) for connections between separated rack units or nearby equipment positions. Plan the route around cable managers and power cords, keeping the assembly free from connector strain while avoiding a large obstruction in the airflow path.

Position Within the Length Range

DAC-QSFP-2QSFP28-50G-2M occupies the middle of this family between DAC-QSFP-2QSFP28-50G-1M at 1m (3ft) and DAC-QSFP-2QSFP28-50G-3M at 3m (10ft). It adds 1m over the shorter option for extra routing clearance, while the next longer version adds another 1m. 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 0.5W. 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 30AWG conductors, PVC (OFNR) jacket, minimum bend radius 10D/5D (Dynamic/Static). 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 100G/50G Ethernet, 128G Fibre Channel. Listed interface and protocol references include IEEE 802.3, QSFP28 MSA, SFP-8665, SFF-8636. Confirm that the host firmware and port configuration support the same operating mode.

Dell Compatibility and Factory Testing

Compatibility is more than matching the QSFP28 to 2x SFP28 shape. This assembly is prepared for hosts expecting DAC-QSFP-2QSFP28-50G-2M 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 DAC-QSFP-2QSFP28-50G-2M with the required quantity. The 2m (7ft) 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 Dell cable?

No. It is an HT-manufactured compatible alternative for equipment that specifies Dell DAC-QSFP-2QSFP28-50G-2M.

Can the cable be folded to shorten its routing path?

No. Follow the specified minimum bend radius and route the 2m (7ft) 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

Every DAC-QSFP-2QSFP28-50G-2M compatible assembly undergoes link testing, compatibility verification and visual inspection. The 2m (7ft) cable is coiled without exceeding its minimum bend radius, fitted with connector protection and packed in an anti-static bag or protective tray before cartoning. Project labels and packing lists are available for volume orders.

Shipping and Lead Time

Lead time for ordinary configurations is normally one to three working days, while production quantities are confirmed with the order. We can arrange express courier or economy freight according to destination and carton volume, or hand the shipment to your appointed logistics provider.

 

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


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