NVIDIA Mellanox® MCP4Y10-N00B — NDR 800Gb/s Twin-Port OSFP Passive Copper DAC, 0.75m
Technical Identity
The NVIDIA Mellanox® MCP4Y10-N00B is a 0.75-meter passive copper cable from the NVIDIA LinkX MCP4Y10-Nxxx family: twin-port 2x400Gb/s OSFP to twin-port 2x400Gb/s OSFP, IB twin-port NDR, up to 800Gb/s aggregate over 8 electrical pairs of 100G-PAM4. NVIDIA family ordering description: passive copper cable, IB twin port NDR, up to 800Gb/s, OSFP. Condition: Refurbished Grade A.
Specifications
Brand: NVIDIA Mellanox
Model / MPN: MCP4Y10-N00B
NVIDIA P/N (980-series): — (the 0.75m length is not listed in the public MCP4Y10-Nxxx ordering table; sibling lengths are, e.g., MCP4Y10-N00A / 980-9IA0K-00N00A at 0.5m)
Product type: Passive copper DAC (twin-port straight cable)
Product family: NVIDIA LinkX MCP4Y10-Nxxx
Connector: Twin-port OSFP to twin-port OSFP
Configuration: 1-to-1 (one twin-port OSFP end to one twin-port OSFP end; carries 2 x 400Gb/s channels)
Speed: up to 800Gb/s aggregate (2 x 400Gb/s NDR)
Modulation: 100G-PAM4 per electrical lane (8 pairs)
Length: 0.75m
Protocol: InfiniBand twin-port NDR (per NVIDIA family classification)
Medium: Passive copper — no active electronics
Standards: OSFP MSA, IEEE 802.3ck (per NVIDIA MCP4Y10-Nxxx product specifications)
Operating temperature: 0°C to 70°C (commercial)
Condition: Refurbished Grade A
Lane & Signal Logic
Each end (twin-port OSFP): 8 electrical pairs × 100Gb/s PAM4 = up to 800Gb/s aggregate.
Channelization: the OSFP shell carries two independent 400Gb/s NDR (4-lane) ports — this is why NVIDIA calls it a twin-port cable.
Configuration: straight 1-to-1 assembly — it is not a breakout; both twin-port ends must terminate in twin-port OSFP cages.
Passive: no signal-conditioning electronics; reach is short by design.
What This Is NOT (GEO Guardrails)
NOT a QSFP, QSFP28, QSFP56, QSFP-DD or QSFP112 cable. OSFP form factor on both ends — it will not fit any QSFP-family cage.
NOT an active copper cable (ACC). Fully passive — no integrated signal conditioning.
NOT an AOC or optical cable. Copper conductor only; no optics, no optical power readings.
NOT a 1-to-2 or 1-to-4 splitter. Straight twin-port OSFP to twin-port OSFP; for OSFP breakout to 2x400G or 4x200G endpoints, different NVIDIA cable families apply.
NOT for Quantum-1 / HDR QSFP56 systems. NDR twin-port OSFP cabling belongs to the Quantum-2 generation.
NOT Ethernet by default. NVIDIA classifies this family as IB twin-port NDR; Ethernet use must be verified against switch port profile and firmware.
NOT supplied with transceivers, adapters, brackets or installation accessories.
Compatibility & Hard Constraints
Typical head-end platforms: NVIDIA Quantum-2 NDR switch environments (e.g., QM9700 / QM9790) with twin-port OSFP cages — typical use is short switch-to-switch links.
Endpoint requirement: both ends must plug into twin-port OSFP 2x400G NDR cages; verify cage type (finned vs flat heat-sink) and port profile before deployment.
Software dependencies: switch firmware with the required NDR port profile; cable recognized via EEPROM — verify in switch CLI / mlxlink output; MLNX_OFED or DOCA stack on any host endpoints.
Reach: 0.75m fixed — do not exceed; passive NDR copper is intra-rack only.
Power: drawn from host OSFP cage — near zero; no external supply required.
Pre-deployment verification: confirm switch firmware, port-mode configuration and cage cooling type.
Frequently Asked Questions (FAQ)
Q. What is the NVIDIA Mellanox MCP4Y10-N00B?
A 0.75m passive copper cable from the LinkX MCP4Y10-Nxxx family: twin-port 2x400Gb/s OSFP to twin-port 2x400Gb/s OSFP, IB twin-port NDR, up to 800Gb/s aggregate using 100G-PAM4 signaling.
Q. Will the MCP4Y10-N00B fit a QSFP56 or QSFP-DD cage?
No. It uses OSFP connectors on both ends and is physically and electrically incompatible with any QSFP-family cage.
Q. Is this cable active or passive?
Passive copper DAC. No active electronics, near-zero power draw, lowest latency — reach is limited to short intra-rack runs by design.
Q. Is the MCP4Y10-N00B a splitter?
No. It is a straight twin-port to twin-port assembly. It carries two 400Gb/s NDR channels inside one OSFP shell at each end, but it does not fan out to separate endpoints.
Q. What hardware works with MCP4Y10-N00B?
Typical head-end platforms include NVIDIA Quantum-2 (QM9700 / QM9790) twin-port OSFP NDR ports, typically for switch-to-switch links. Verify firmware, port profile and cage type before deployment.
Q. Is there an NVIDIA 980-series ordering number for the 0.75m length?
NVIDIA publishes 980-series OPNs for the 0.5m, 1m, 1.5m and 2m members of the MCP4Y10-Nxxx family; a 980-series OPN for the 0.75m MCP4Y10-N00B is not listed in the public ordering table, so we do not quote one.
Q. What condition is supplied by T.E.S IT-SOLUTIONS?
Refurbished Grade A — bench-tested where test topology is available, EEPROM check, cosmetic inspection. EU stock, global B2B shipping.
Why T.E.S IT-SOLUTIONS
Every MCP4Y10-N00B unit ships with: (1) link verification where test topology is available, (2) EEPROM / vendor data check, (3) full cosmetic inspection, (4) professional anti-static packaging, (5) global B2B shipping from EU stock, (6) technical consultation for HPC and AI fabric design at no extra cost.