NVIDIA/Mellanox MCA7J75-N003 Compatible 800G Twin-port OSFP 8 x 100G PAM4 IHS/Finned Top to 4 x 200G QSFP112 2 x 100G PAM4 InfiniBand NDR Active Copper Breakout Cable, 3m (10ft)
For project documentation, NVIDIA/Mellanox MCA7J75-N003 and this cable’s physical length should be recorded together. The product described here is a 3m (10ft) ACC assembly for 800G links, using OSFP (IHS/Finned Top) to 4x QSFP112. Its OEM cross-reference, HT part number, specification table and packing options support traceable ordering and installation records.
OEM Part Number: MCA7J75-N003HT Part Number: MCA7J75-N003
Product Highlights
- Compatible alternative to NVIDIA/Mellanox MCA7J75-N003
- 800G connectivity at 800Gbps
- Interface configuration: OSFP (IHS/Finned Top) to 4x QSFP112
- Fixed length and part number: 3m (10ft), MCA7J75-N003
- Cable construction: Active Breakout DAC (ACC)
- Conductor specification: 30AWG
- Maximum power consumption: 1.7W (OSFP End)0.3W (QSFP112 Per End)
- Minimum bend radius: 23mm
Specifications
| HT Part Number | MCA7J75-N003 |
|---|---|
| NVIDIA/Mellanox InfiniBand Compatible | MCA7J75-N003 |
| Manufacturer | HT |
| Form Factor | OSFP (IHS/Finned Top) to 4x QSFP112 |
| Max. Data Rate | 800Gbps |
| Media | Copper |
| Cable Type | Active Breakout DAC (ACC) |
| Minimum Bend Radius | 23mm |
| Wire AWG | 30AWG |
| Cable Length | 3m (10ft) |
| Jacket Material | PET |
| Max. Power Consumption | 1.7W (OSFP End)0.3W (QSFP112 Per End) |
| Modulation Format | OSFP-8x 100G-PAM4QSFP112-2x 100G-PAM4 |
| DDM/DOM | Not Supported |
| Commercial TemperatureRange | 0 to 70°C (32 to 158°F) |
| Protocols | OSFP MSA Rev5.0, QSFP112 MSA, IEEE 802.3ck, CMIS 5.0 |
Signal and Lane Configuration
The listed modulation format is OSFP-8x 100G-PAM4QSFP112-2x 100G-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.
Power and Thermal Planning
The rated power consumption is 1.7W (OSFP End)0.3W (QSFP112 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 23mm. 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 determined by the host interface and protocol support. Listed interface and protocol references include OSFP MSA Rev5.0, QSFP112 MSA, IEEE 802.3ck, CMIS 5.0. Confirm that the host firmware and port configuration support the same operating mode.
Breakout Port Mapping
The OSFP (IHS/Finned Top) to 4x QSFP112 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.
Length Selection and Installation Planning
At 3m (10ft), this assembly can bridge non-aligned ports or adjacent racks while remaining a single direct-attach link. Support longer horizontal runs with suitable cable management and preserve space for cooling and future maintenance.
Position Within the Length Range
MCA7J75-N003 occupies the middle of this family between MCA7J75-N002 at 2m (7ft) and MCA7J75-N004 at 4m (13ft). It adds 1m over the shorter option for extra routing clearance, while the next longer version adds another 1m. 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 23mm; the stated power consumption is 1.7W (OSFP End)0.3W (QSFP112 Per End); the jacket material is PET.
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. 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 MCA7J75-N003.
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.
Can different brands be connected with the same assembly?
Only where both hosts explicitly support the complete interface and compatibility arrangement. Document each end and select the appropriate brand-specific product when required.
Does this order code cover multiple lengths?
No. MCA7J75-N003 refers here to 3m (10ft). Every other verified length has a separate part number and page in the length list.
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. Quantity and any labeling instructions should be attached specifically to MCA7J75-N003.
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. 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. Volume orders can include customer references on the labels and carton list.
