NVIDIA/Mellanox MCA4K50-X001 Compatible 1.6T OSFP224 8 x 200G PAM4 IHS/Finned Top InfiniBand XDR Active Copper Twinax Cable, 1.1m (3.6ft)
For buyers working from an equipment parts list, MCA4K50-X001 identifies more than a connector style. It refers here to a 1.1m (3.6ft) ACC cable for NVIDIA/Mellanox hosts, supporting 1.6T operation with OSFP (IHS/Finned Top) to OSFP (IHS/Finned Top). The sections below separate the OEM cross-reference, physical specification and HT factory checks for straightforward purchasing review.
OEM Part Number: MCA4K50-X001HT Part Number: MCA4K50-X001
Product Highlights
- Compatible alternative to NVIDIA/Mellanox MCA4K50-X001
- 1.6T connectivity at 1600Gbps
- Interface configuration: OSFP (IHS/Finned Top) to OSFP (IHS/Finned Top)
- Fixed length and part number: 1.1m (3.6ft), MCA4K50-X001
- Cable construction: Active DAC (ACC)
- Conductor specification: 30AWG
- Maximum power consumption: 2W Per End
- Minimum bend radius: 50mm
Specifications
| HT Part Number | MCA4K50-X001 |
|---|---|
| NVIDIA/Mellanox InfiniBand Compatible | MCA4K50-X001 |
| 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 | 1.1m (3.6ft) |
| 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.
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.
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-X001 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-X001 is the shortest of 3 verified length options in this family. It is the preferred choice when the port positions are close and cable slack must be kept to a minimum. The next option is MCA4K50-X01A at 1.5m (5ft), adding 0.4m for a less direct routing path; selecting it unnecessarily would leave more cable to dress.
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 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.
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. The check includes link stability and diagnostic indications, followed by a final inspection of both ends.
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. Quantity and any labeling instructions should be attached specifically to MCA4K50-X001.
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 MCA4K50-X001.
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.