NVIDIA/Mellanox MCA4K50-X01A Compatible 1.6T OSFP224 8 x 200G PAM4 IHS/Finned Top InfiniBand XDR Active Copper Twinax Cable, 1.5m (5ft)
The assembly listed here is the 1.5m (5ft) member of the MCA4K50-X01A product family for NVIDIA/Mellanox equipment. It provides 1.6T ACC connectivity through OSFP (IHS/Finned Top) to OSFP (IHS/Finned Top). Project teams can use the detailed table, related references and documentation-oriented packing information to keep each delivered cable aligned with its planned endpoints.
OEM Part Number: MCA4K50-X01AHT Part Number: MCA4K50-X01A
Product Highlights
- Compatible alternative to NVIDIA/Mellanox MCA4K50-X01A
- 1.6T connectivity at 1600Gbps
- Interface configuration: OSFP (IHS/Finned Top) to OSFP (IHS/Finned Top)
- Fixed length and part number: 1.5m (5ft), MCA4K50-X01A
- Cable construction: Active DAC (ACC)
- Conductor specification: 30AWG
- Maximum power consumption: 2W Per End
- Minimum bend radius: 50mm
Specifications
| HT Part Number | MCA4K50-X01A |
|---|---|
| NVIDIA/Mellanox InfiniBand Compatible | MCA4K50-X01A |
| Manufacturer | HT |
| Form Factor | OSFP (IHS/Finned Top) to OSFP (IHS/Finned Top) |
| Max. Data Rate | 1600Gbps |
| Media | Copper |
| Cable Type | Active DAC (ACC) |
| Cable Length | 1.5m (5ft) |
| Jacket Material | PET |
| Minimum Bend Radius | 50mm |
| Wire AWG | 30AWG |
| Max. Power Consumption | 2W Per End |
| Modulation Format | 8x 200G-PAM4 to 8x 200G-PAM4 |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Application | 1.6T InfiniBand |
| Protocols | OSFP Rev 5.2, IEEE 802.3df, IEEE 802.3dj, CMIS 5.0 |
Signal and Lane Configuration
The listed modulation format is 8x 200G-PAM4 to 8x 200G-PAM4. 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 1.6T InfiniBand. Listed interface and protocol references include OSFP Rev 5.2, IEEE 802.3df, IEEE 802.3dj, CMIS 5.0. Confirm that the host firmware and port configuration support the same operating mode.
Length Selection and Installation Planning
The additional half metre beyond a one-metre assembly gives MCA4K50-X01A useful routing flexibility when the ports are not directly aligned. It can accommodate a different rack unit or a short service loop, but excess cable should be dressed loosely rather than folded into a tight coil.
Position Within the Length Range
MCA4K50-X01A occupies the middle of this family between MCA4K50-X001 at 1.1m (3.6ft) and MCA4K50-X002 at 2m (7ft). It adds 0.4m 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.
Project Documentation and Cable Identification
Large deployments are easier to audit when the order code, physical length and endpoint record agree. Keep the OEM reference in the compatibility document and use the HT part number on the packing list. Where several lengths arrive together, labels and carton groups can be arranged by rack or port plan so installers do not have to identify cables by appearance alone. For this assembly, the listed conductor specification is 30AWG; the minimum bend radius is 50mm; the stated power consumption is 2W Per End; the jacket material is PET.
Power and Thermal Planning
The rated power consumption is 2W 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 30AWG conductors, PET jacket, minimum bend radius 50mm. 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
Factory verification links the compatibility identity to the exact physical assembly described on this page. Identification, connector condition and live link behavior are checked before packing. Customers can submit equipment and firmware details with the project documentation for a more specific pre-order compatibility review. The check includes link stability and diagnostic indications, followed by a final inspection of both ends.
Frequently Asked Questions
Is this an original NVIDIA/Mellanox cable?
No. It is an HT-manufactured compatible alternative for equipment that specifies NVIDIA/Mellanox MCA4K50-X01A.
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.
What details assist a compatibility review?
Provide the equipment manufacturer, model, port type, hardware revision and software release, together with the OEM reference, required length and quantity.
How should an unused assembly be stored?
Protect both connector ends, keep the cable in a loose bend-safe coil and retain its part-number label so the length and compatibility identity remain traceable.
Ordering Information
Use the listed HT part number for ordering and retain the OEM reference as the host-compatibility cross-reference. Send quantities by length, along with any rack-based packing or label instructions. If the project has mixed equipment, include the host model for each group rather than relying only on the aggregate cable rate. Keep MCA4K50-X01A associated with 1.5m (5ft) throughout the order and receiving record.
Shipping and Lead Time
Standard configurations normally ship within one to three working days, while production quantities are confirmed with the order. Worldwide courier services are available, with air or sea freight for consolidated shipments; freight-collect delivery and coordination with a customer’s logistics provider can be arranged.
Quality Assurance and Packaging
Inspection and link testing are completed before the cable enters its protective packaging. Project orders can be packed and labelled by length, rack or customer reference, with packing documentation that makes received quantities straightforward to reconcile against the installation schedule. Neutral packaging and customer-specific packing documentation are available on request.
