NVIDIA/Mellanox MFA1A00-E050 Compatible 100G QSFP28 4 x 25G NRZ Infiniband EDR Active Optical Cable, 50m (164ft)
The MFA1A00-E050 compatible assembly is intended for NVIDIA/Mellanox equipment that requires a 100G direct-attached connection. This version is specifically 50m (164ft), with QSFP28 to QSFP28 and its own order reference. Exact length pages and equivalent brand references are linked to make multi-product procurement easier to verify.
OEM Part Number: MFA1A00-E050HT Part Number: MFA1A00-E050
Product Highlights
- Compatible alternative to NVIDIA/Mellanox MFA1A00-E050
- 100G connectivity at 100Gbps
- Interface configuration: QSFP28 to QSFP28
- Fixed length and part number: 50m (164ft), MFA1A00-E050
- Cable construction: Optical Cable
- Maximum power consumption: <2.2W
- Minimum bend radius: 30mm
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| HT Part Number | MFA1A00-E050 |
|---|---|
| NVIDIA/Mellanox Infiniband Compatible | MFA1A00-E050 |
| Manufacturer | HT |
| Form Factor | QSFP28 to QSFP28 |
| Max Data Rate | 100Gbps |
| Minimum Bend Radius | 30mm |
| Cable Length | 50m (164ft) |
| Jacket Material | OFNP |
| Cable Type | Optical Cable |
| Receiver Type | PIN |
| Transmitter Type | VCSEL |
| Wavelength | 850nm |
| Power Consumption | <2.2W |
| MTBF | ≈50 Million Hours |
| Power supply | 3.3V |
| Modulation Format | NRZ |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | IEEE 802.3 bm, SFF-8665 |
| CDR (Clock and Data Recovery) | TX & RX Built-in CDR |
| Modulation Format | 4x 25G-NRZ to 4x 25G-NRZ |
| Application | InfiniBand EDR |
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.
Length Selection and Installation Planning
Extended reach changes the installation checks for MFA1A00-E050. Confirm that 50m (164ft) follows the intended route without tension, then verify that intermediate supports do not squeeze the jacket or hide the connectors behind adjacent cables. Both hosts must still match the stated interface and lane configuration. Within this family, MFA1A00-E030 is shorter at 30m (98ft), while MFA1A00-E100 is the next longer choice at 100m (328ft); comparing those two boundaries helps avoid both tension and unnecessary slack.
Position Within the Length Range
MFA1A00-E050 occupies the middle of this family between MFA1A00-E030 at 30m (98ft) and MFA1A00-E100 at 100m (328ft). It adds 20m over the shorter option for extra routing clearance, while the next longer version adds another 50m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.
Procurement and Port-Mapping Review
A useful purchase order should identify the host platform, the expected OEM code and the exact cable length as separate pieces of information. This prevents a physically similar assembly from being substituted when the port identification or reach is different. For mixed-length installations, prepare one order line per part number and reconcile each delivered cable with its intended pair of ports. For this assembly, the minimum bend radius is 30mm; the stated power consumption is <2.2W; the jacket material is OFNP.
Power and Thermal Planning
The rated power consumption is <2.2W. 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.
Network and Protocol Considerations
The intended application is InfiniBand EDR. Listed interface and protocol references include IEEE 802.3 bm, SFF-8665. Confirm that the host firmware and port configuration support the same operating mode.
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.
NVIDIA/Mellanox Compatibility and Factory Testing
Our procurement-oriented compatibility check begins with the OEM reference and ends with a live host link. We record the physical length separately from the identification configuration, so the cable supplied for this page remains the stated version rather than a generic length substitute. Where supported by the host, receive activity and diagnostic indications are reviewed together with the established link.
Ordering Information
For a clear bill of materials, quote the OEM reference, HT part number, length and quantity on the same line. Add the switch or server model and software release when a pre-order review is required; project labels can repeat those details for receiving and installation teams. Keep MFA1A00-E050 associated with 50m (164ft) throughout the order and receiving record.
Quality Assurance and Packaging
Before packing, the assembly is checked for connector condition, identification and link operation. Cables for multi-line orders can be labelled and grouped by part number, making it easier to match each length to the procurement record without opening every protective bag. Neutral packaging and customer-specific packing documentation are available on request.
Frequently Asked Questions
Is this an original NVIDIA/Mellanox cable?
No. It is an HT-manufactured compatible alternative for equipment that specifies NVIDIA/Mellanox MFA1A00-E050.
Are separate transceivers or patch leads required?
No. This is one complete direct-attach assembly. The ends are not detachable modules and should not be separated from the cable.
Can excess cable be folded into a compact bundle?
No. Use a supported, bend-safe service loop and observe the listed minimum bend radius. Do not crease the cable or tighten ties around the connector boots.
Will any matching connector operate at the same speed?
Not necessarily. Both hosts must support the stated rate, identification, lane mapping and any required breakout configuration; mechanical compatibility alone is insufficient.
Shipping and Lead Time
Available stock is generally dispatched within one to three working days after order confirmation, with production lead times advised for larger quantities. International express, air cargo and sea freight can be selected according to destination and carton volume; customer courier accounts and nominated forwarders are also accepted.