NDR OSFP copper cables technical selection questions
Technical evaluation questions with variant-specific scope and sources.
These questions are prepared from the cited technical documentation and clearly scoped owner inputs. They are not a measured frequency ranking. Keep the applicability line with each answer; do not transfer board, cooling, crypto, protocol, cable length or firmware facts between variants.
Is MCP4Y10-N002 a breakout cable?
Applicable canonical content subjects: 980-9IA0I-00N002.
No. It is a 2 m point-to-point twin-port OSFP cable. Eight 100G-PAM4 lanes carry two logical 400G links.
Public references
- MCP4Y10-Nxxx Twin-port 2x400Gb/s OSFP to 2x400Gb/s OSFP Passive DAC Product Specifications | MCP4Y10-Nxxx Twin-port 2x400Gb/s OSFP to 2x400Gb/s OSFP Passive DAC Product Specifications
- MCP4Y10-Nxxx Product Specifications
Which thermal shell is supplied?
Applicable canonical content subjects: 980-9IA0I-00N002.
The standard MCP4Y10-N002 has two finned ends. -FLT and -FTF are separate variants; a generic DGX family application does not make this finned assembly fit a flat-top cage.
Public references
- MCP4Y10-Nxxx Twin-port 2x400Gb/s OSFP to 2x400Gb/s OSFP Passive DAC Product Specifications | MCP4Y10-Nxxx Twin-port 2x400Gb/s OSFP to 2x400Gb/s OSFP Passive DAC Product Specifications
- MCP4Y10-Nxxx Product Specifications
Where is this cable documented for use?
Applicable canonical content subjects: 980-9IA0I-00N002.
NVIDIA describes Quantum-2 NDR and Spectrum-4 Ethernet switch interlinks. The exact SKU is in the cited Quantum-2 validated list.
Public references
Which wire-gauge evidence is used?
Applicable canonical content subjects: 980-9IA0I-00N002.
The exact 2 m portfolio and mechanical-row evidence support 26 AWG. A broader overview says 30 AWG through 2 m; retain that discrepancy for label/drawing review rather than substituting another OPN.
Public references
Where does forward error correction take place?
Applicable canonical content subjects: 980-9IA0I-00N002, 980-9I924-00N002.
The FAQ places FEC in the switch and network adapter. Match the supported endpoint configuration; a cable does not independently fix a FEC mismatch.
Public references
Why can a cable have two minimum bend radii?
Applicable canonical content subjects: 980-9IA0I-00N002, 980-9I924-00N002.
The connector exit generally needs a larger bend radius than the cable body. Follow the exact assembly drawing and leave adequate space behind the rack door.
Public references
What rate does each MCP7Y00-N002 tail provide?
Applicable canonical content subjects: 980-9I924-00N002.
Each of the two OSFP tails carries 400G using four 100G-PAM4 lanes. The head carries 800G in aggregate.
Public references
What is its thermal construction?
Applicable canonical content subjects: 980-9I924-00N002.
It has a finned twin-port OSFP head and flat single-port OSFP tails. It is not the -FLT version.
Public references
- Validated and Supported Cables and Switches | ConnectX-7 Firmware RN
- MCP7Y00-Nxxx 800Gbps Twin-port 2x400G OSFP to 2x400G OSFP Passive DAC Splitter | MCP7Y00-Nxxx 800Gbps Twin-port 2x400G OSFP to 2x400G OSFP Passive DAC Splitter
Can the tails plug into BlueField-3 QSFP112 cages?
Applicable canonical content subjects: 980-9I924-00N002.
No. NVIDIA’s use-case guidance distinguishes OSFP ConnectX-7 tails from QSFP112 endpoints. Choose the cable ending in the actual host form factor.
Public references
What does P-Rel mean in this record?
Applicable canonical content subjects: 980-9I924-00N002.
The cited manufacturer lifecycle legend defines P-Rel as GA level. It does not provide an inventory, delivery or offered-batch test guarantee.
Public references
Technical illustrations
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