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NVIDIA/Mellanox MCA4K50-X01A Compatible 1.6T OSFP224 8 x 200G PAM4 IHS/Finned Top InfiniBand XDR Active Copper Twinax Cable, 1.5m (5ft)

NVIDIA/Mellanox MCA4K50-X01A Compatible 1.6T OSFP224 8 x 200G PAM4 IHS/Finned Top InfiniBand XDR Active Copper Twinax Cable, 1.5m (5ft)

This 1.5m (5ft) MCA4K50-X01A compatible assembly provides 1.6T ACC connectivity for NVIDIA/Mellanox interfaces in a OSFP (IHS/Finned Top) to OSFP (IHS/Finned Top) configuration. It is supplied as one complete cable, with specifications and installation guidance that help high-density racks balance reach, connector access and airflow while retaining the exact OEM reference required by the host.

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 NumberMCA4K50-X01A
NVIDIA/Mellanox InfiniBand CompatibleMCA4K50-X01A
ManufacturerHT
Form FactorOSFP (IHS/Finned Top) to OSFP (IHS/Finned Top)
Max. Data Rate1600Gbps
MediaCopper
Cable TypeActive DAC (ACC)
Cable Length1.5m (5ft)
Jacket MaterialPET
Minimum Bend Radius50mm
Wire AWG30AWG
Max. Power Consumption2W Per End
Modulation Format8x 200G-PAM4 to 8x 200G-PAM4
Commercial Temperature Range0 to 70°C (32 to 158°F)
Application1.6T InfiniBand
ProtocolsOSFP 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.

High-Density Rack Integration

In a densely populated rack, connector access and airflow are part of the link design. Choose the shortest length that follows the managed path comfortably, avoid tight bundles around the connector housings and preserve room for latch operation. Where power consumption is listed, include every populated interface in the host thermal budget rather than assessing a single cable in isolation. 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.

Quality Assurance and Packaging

Each assembly receives a visual connector inspection and functional link check before it is coiled and protected. Packaging is selected to avoid compressing the cable into a tight bundle, and optional rack-based labels help maintain an orderly installation when many identical interfaces are populated together. Standard protective packing is used by default, with project documentation arranged when requested.

Ordering Information

Provide the exact part number, length, quantity and target interface density. For multi-rack projects, list each length separately and identify any preferred carton grouping. Host model and software information can be included for a compatibility review before production or dispatch. Keep MCA4K50-X01A associated with 1.5m (5ft) throughout the order and receiving record.

NVIDIA/Mellanox Compatibility and Factory Testing

The assembly is evaluated for host recognition and stable link operation, with diagnostics checked where the interface provides them. This approach verifies more than electrical or optical continuity. Exact platform and firmware information remains valuable in high-density deployments because port mode and qualification policy can differ within the same connector family. Where supported by the host, link stability and diagnostic indications are reviewed together with the established link.

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.

Shipping and Lead Time

Available stock is normally prepared for dispatch within one to three working days, while larger production requirements are scheduled with the order. Delivery can be arranged by courier, air freight or sea freight, and goods may instead be handed to an appointed forwarder or shipped on the customer’s courier account.

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