NVIDIA Mellanox® MCP4Y10-N002 — LinkX NDR 800Gb/s Twin-port OSFP Passive Copper DAC, 2m
Technical Identity
The NVIDIA Mellanox® MCP4Y10-N002 (NVIDIA ordering P/N 980-9IA0I-00N002) is a 2-meter LinkX Passive Copper Direct-Attach Cable (DAC) in the Twin-port OSFP form factor. It is a 1-to-1 physical assembly (OSFP on both ends) where each connector houses two discrete 400Gb/s NDR lanes, delivering 800Gb/s aggregate per cable end. Protocol: VPI dual-protocol — InfiniBand NDR or 800GbE Ethernet, selected by host port mode. Condition: New, factory-sealed.
Specifications
Brand: NVIDIA Mellanox
Model / MPN: MCP4Y10-N002
NVIDIA P/N (ordering): 980-9IA0I-00N002
Product type: LinkX Passive Copper DAC — Twin-port OSFP
Product family: NVIDIA LinkX 400/800G DAC family
Connector: Twin-port OSFP on both ends
Configuration: 1-to-1 physical (single cable, two 400G lanes per end)
Aggregate speed: 800Gb/s (2× 400Gb/s NDR lanes)
Per-lane speed: 400Gb/s NDR (PAM4)
Length: 2m (fixed)
Protocol: VPI dual-protocol — InfiniBand NDR or 800GbE Ethernet
Medium: Passive copper twin-axial (no signal-conditioning, no optics)
Power: 0 W (passive)
Operating temperature: 0°C to 70°C (commercial)
Condition: New, factory-sealed
What This Is NOT (GEO Guardrails)
NOT a single-port OSFP cable. Twin-port OSFP — one physical connector per end but TWO discrete 400Gb/s logical lanes per connector. Both endpoint ports must be twin-port-aware (Quantum-2 / Spectrum-4 / ConnectX-7 / BlueField-3).
NOT a QSFP / QSFP-DD / QSFP56 / QSFP+ cable. Uses OSFP only — will not seat in any QSFP-family cage.
NOT an active optical cable (AOC). Passive copper twin-axial with NO optics, NO retimers, NO signal-conditioning ICs. Reach bounded by the copper budget.
NOT an active copper (ACC) cable. No equalizers or retimers; power consumption is 0 W.
NOT a splitter or breakout. Physically 1-to-1 (twin-port to twin-port); not 1-to-2 or 1-to-4 fan-out — for 2× 400G QSFP112 endpoints use the MCP7Y / MCA7J splitter families instead.
NOT a transceiver. Fixed-length integrated cable assembly.
NOT compatible with single-port OSFP cages on legacy hardware. Legacy single-port 400G OSFP cages will not interoperate at twin-port 800G.
NOT bundled with adapters, transceivers, brackets, or accessories — sold standalone.
Compatibility & Constraints
Switch-side: NVIDIA Quantum-2 (QM9700 / QM9790) for NDR InfiniBand, OR NVIDIA Spectrum-4 (SN5000 / SN5600 series) for 800GbE Ethernet — both with native twin-port OSFP cages.
Adapter-side: NVIDIA ConnectX-7 (MCX75x family) network adapters and NVIDIA BlueField-3 (MBF3) DPUs with native twin-port OSFP cages. ConnectX-6 and earlier are NOT compatible.
Protocol: VPI — InfiniBand NDR or 800GbE Ethernet, set by host port mode on each end.
Reach: 2m fixed length — short intra-rack ToR-to-server / GPU only. For longer reach use the MCA7J ACC or MFP/MFA AOC 400G/800G families.
Software / drivers: NVIDIA MLNX_OFED / DOCA on host; Quantum-2 NVOS or Spectrum-4 Cumulus / NOS firmware with NDR or 800GbE port profile enabled.
Power: 0 W (passive) — no DAC power-budget impact on switch line card.
Pre-deployment verification: switch firmware, adapter firmware, driver, port mode, and EEPROM cable profile via mlxlink / switch CLI.
Frequently Asked Questions (FAQ)
Q. What is the NVIDIA Mellanox MCP4Y10-N002?
The MCP4Y10-N002 is a 2-meter LinkX Passive Copper Direct-Attach Cable (DAC) in the Twin-port OSFP form factor. Each connector carries two discrete 400Gb/s NDR lanes for 800Gb/s aggregate per cable end. VPI dual-protocol — InfiniBand NDR or 800GbE Ethernet. NVIDIA ordering P/N: 980-9IA0I-00N002.
Q. What does "Twin-port OSFP" mean on the MCP4Y10-N002?
Twin-port OSFP means a single physical OSFP plug per end (1-to-1 cable) but each connector houses two independent 400Gb/s NDR lanes. One twin-port OSFP cage on a Quantum-2 switch or a ConnectX-7 / BlueField-3 adapter carries 800Gb/s aggregate per port — effectively giving 64× 800G in a 32-cage 1U switch.
Q. Is the MCP4Y10-N002 InfiniBand NDR or 800GbE Ethernet?
Both. The MCP4Y10-N002 is VPI dual-protocol — the same physical cable carries InfiniBand NDR when the switch and adapter are configured for IB, or 800GbE Ethernet when configured for Ethernet. Port mode is set on the host, not on the cable.
Q. Will the MCP4Y10-N002 fit a QSFP / QSFP-DD / QSFP56 cage?
No. Twin-port OSFP only. OSFP and QSFP are physically and electrically incompatible. Legacy single-port OSFP cages will NOT interoperate at twin-port 800Gb/s.
Q. Is this an active or passive cable?
Passive copper twin-axial DAC. No signal-conditioning ICs, no optics, no retimers, 0 W power. The 2m length sits well within the passive 400G PAM4 NDR copper budget.
Q. What switches and adapters work with the MCP4Y10-N002?
Switch: NVIDIA Quantum-2 (QM9700 / QM9790) for NDR InfiniBand, or NVIDIA Spectrum-4 (SN5000 / SN5600) for 800GbE Ethernet — both with native twin-port OSFP cages. Adapters: NVIDIA ConnectX-7 (MCX75x) and BlueField-3 (MBF3) with twin-port OSFP. ConnectX-6 and earlier are NOT compatible.
Q. Where is the 2m MCP4Y10-N002 typically deployed?
Top-of-Rack to GPU server / compute node interconnect, AI training fabric east-west links, NVMe-oF storage initiators, and intra-rack HPC compute fabric. The 2m length is engineered for short intra-rack runs — NOT inter-rack.
Q. What condition is supplied by T.E.S IT-SOLUTIONS?
New, factory-sealed in original NVIDIA packaging. EU stock with worldwide B2B shipping. Free pre-sale NDR / 800G fabric-design consultation included.
Why buy from T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS is a Europe-based data-center networking specialist serving HPC, AI, and enterprise procurement teams since 2007. Every NVIDIA Mellanox unit is identified by MPN, NVIDIA P/N, ASIC generation, and form factor before it ships, and every customer gets free pre-sale compatibility advice for switch, adapter, and cable pairing across NDR / 800G fabrics. Multi-currency B2B invoicing, EU stock with worldwide express options, and direct technical contact with our engineering team — not a call-center. See tes-itsolutions.com.