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NVIDIA/Mellanox MFA7A50-C025 Compatible 100G QSFP28 4 x 25G NRZ to 4 x 25G SFP28 NRZ Ethernet Active Optical Breakout Cable, 25m (82ft)

NVIDIA/Mellanox MFA7A50-C025 Compatible 100G QSFP28 4 x 25G NRZ to 4 x 25G SFP28 NRZ Ethernet Active Optical Breakout Cable, 25m (82ft)

For short, high-density connections, this AOC cable combines 100G performance with a fixed 25m (82ft) cable run. It corresponds to NVIDIA/Mellanox MFA7A50-C025 and uses a factory-terminated active optical link with the optical engines and fiber integrated into the assembly.

OEM Part Number: MFA7A50-C025HT Part Number: MFA7A50-C025

Product Highlights

  • Compatible alternative to NVIDIA/Mellanox MFA7A50-C025
  • 100G connectivity at 100Gbps
  • Interface configuration: QSFP28 to 4x SFP28
  • Fixed length and part number: 25m (82ft), MFA7A50-C025
  • Cable construction: Breakout AOC
  • Maximum power consumption: 2.2W (QSFP28 End)0.8W (SFP28 Per End)
  • Minimum bend radius: 30mm
  • Operating temperature: 0 to 70°C (32 to 158°F)

Specifications

HT Part NumberMFA7A50-C025
NVIDIA/Mellanox Ethernet CompatibleMFA7A50-C025
ManufacturerHT
Form FactorQSFP28 to 4x SFP28
Max. Data Rate100Gbps
Cable Length25m (82ft)
Cable TypeBreakout AOC
Wavelength850nm
Minimum Bend Radius30mm
Transmitter TypeVCSEL
Receiver TypePIN
Max. Power Consumption2.2W (QSFP28 End)0.8W (SFP28 Per End)
Modulation FormatQSFP28-4x 25G-NRZ SFP28-1x 25G-NRZ
CDR (Clock and Data Recovery)TX & RX Built-in CDR
Jacket MaterialOFNP
DDM/DOMSupported
Commercial Temperature Range0 to 70°C (32 to 158°F)
ProtocolsQSFP28 MSA, SFP28 MSA

Signal and Lane Configuration

The listed modulation format is QSFP28-4x 25G-NRZ SFP28-1x 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.

Network and Protocol Considerations

The intended application is determined by the host interface and protocol support. Listed interface and protocol references include QSFP28 MSA, SFP28 MSA. Confirm that the host firmware and port configuration support the same operating mode.

Breakout Port Mapping

The QSFP28 to 4x 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.

Integrated Optical Assembly

The optical engines and fiber are permanently integrated into this AOC. There are no detachable optical modules to clean or exchange. Handle the complete assembly by its connector housings and cable, and keep both ends matched to the same interface specification.

Length Selection and Installation Planning

The extended 25m (82ft) reach supports connections across adjacent racks or between separated equipment rows. Secure the cable along its route, protect both ends from pull loads and preserve ventilation. The integrated AOC construction avoids a chain of separate modules and patch leads.

Position Within the Length Range

MFA7A50-C025 occupies the middle of this family between MFA7A50-C020 at 20m (66ft) and MFA7A50-C030 at 30m (98ft). It adds 5m over the shorter option for extra routing clearance, while the next longer version adds another 5m. 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 2.2W (QSFP28 End)0.8W (SFP28 Per End). 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 OFNP jacket, minimum bend radius 30mm. 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.

NVIDIA/Mellanox Compatibility and Factory Testing

The HT cable carries the compatibility configuration associated with MFA7A50-C025, while its mechanical assembly remains the fixed 25m (82ft) version described here. Incoming inspection, connector examination and a live link test are completed before packing. Customers with unusually old or new NVIDIA/Mellanox software can request a pre-order check.

Ordering Information

Quote HT part number MFA7A50-C025 with the required quantity. The 25m (82ft) 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 NVIDIA/Mellanox cable?

No. It is an HT-manufactured compatible alternative for equipment that specifies NVIDIA/Mellanox MFA7A50-C025.

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.

Does this page include more than one cable length?

No. This page is dedicated to 25m (82ft) and part number MFA7A50-C025. Other lengths have their own part numbers and product pages.

Are separate optical modules required?

No. The connectors and cable form one complete direct-attach assembly. Do not attempt to detach or replace either end.

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.

 

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


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