NVIDIA/Mellanox MC220731V-020 Compatible 56G QSFP+ Ethernet Active Optical Cable, 20m (66ft)

This page covers one precise cable-schedule item: NVIDIA/Mellanox MC220731V-020 in 20m (66ft), supporting High-Speed operation through QSFP+ to QSFP+. The complete AOC assembly is identified separately from other lengths and includes verified specifications, change-control-friendly ordering details and live-link factory checks.
OEM Part Number: MC220731V-020HT Part Number: MC220731V-020
Product Highlights
- Compatible alternative to NVIDIA/Mellanox MC220731V-020
- High-Speed connectivity at FDR 56Gbps
- Interface configuration: QSFP+ to QSFP+
- Fixed length and part number: 20m (66ft), MC220731V-020
- Minimum bend radius: 30mm
Specifications
| HT Part Number | MC220731V-020 |
|---|---|
| NVIDIA/Mellanox (Ethernet) Compatible | MC220731V-020 |
| Manufacturer | HT |
| Connector Type | QSFP+ to QSFP+ |
| Data Rate | FDR 56Gbps |
| Minimum Bend Radius | 30mm |
| Cable Length | 20m (65.62ft) |
| Jacket Material | OFNP |
| Temperature | 0 to 70°C (32 to 158°F) |
| Protocols | 56G InfiniBand , 4x FDR, Fibre Channel |
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.
Structured Pathways and Serviceability
Treat the direct-attach assembly as part of the permanent pathway plan even when the link is expected to be temporary. Follow the intended horizontal and vertical managers, maintain the specified bend radius and leave service access around both ports. A small, supported service allowance is preferable to excess slack concealed inside a rack or placed under cable-tie pressure. For this assembly, the minimum bend radius is 30mm; the jacket material is OFNP.
Network and Protocol Considerations
The intended application is determined by the host interface and protocol support. Listed interface and protocol references include 56G InfiniBand , 4x FDR, Fibre Channel. 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.
Length Selection and Installation Planning
The installation review for a 20m (66ft) link should include pathway length, support points, connector access and future maintenance. Route the integrated optical cable and both optical engines before attaching both ends, and avoid dragging it across connector panels. A final inspection should confirm that no latch, boot or jacket section carries unnecessary strain. Within this family, MC220731V-015 is shorter at 15m (49ft), while MC220731V-025 is the next longer choice at 25m (82ft); comparing those two boundaries helps avoid both tension and unnecessary slack.
Position Within the Length Range
MC220731V-020 occupies the middle of this family between MC220731V-015 at 15m (49ft) and MC220731V-025 at 25m (82ft). It adds 5m over the shorter option for extra routing clearance, while the next longer version adds another 5m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.
Ordering Information
Include the part number, fixed length, quantity and required pathway or rack grouping in the order information. The host model and firmware release are useful for change-controlled deployments. Different lengths should remain separate order lines so delivered labels and packing records agree with the pathway plan. Keep MC220731V-020 associated with 20m (66ft) throughout the order and receiving record.
NVIDIA/Mellanox Compatibility and Factory Testing
Verification covers the physical connectors, expected host identity and an operating link with available diagnostic indications. We distinguish this complete check from a simple continuity test. Platform model and software release can be reviewed in advance where the installation has strict documentation or change-control requirements. The check includes receive activity and diagnostic indications, followed by a final inspection of both ends.
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.
Quality Assurance and Packaging
After connector inspection and link verification, the assembly is coiled without tight bends and packed with end protection. Labels can cross-reference the customer cable schedule, OEM part number and length. This supports both receiving checks and later moves, adds or changes. Volume orders can include customer references on the labels and carton list.
Frequently Asked Questions
Is this an original NVIDIA/Mellanox cable?
No. It is an HT-manufactured compatible alternative for equipment that specifies NVIDIA/Mellanox MC220731V-020.
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. MC220731V-020 refers here to 20m (66ft). Every other verified length has a separate part number and page in the length list.
MC220731V-020