NVIDIA MCP4Y10-N002 800Gb/s Twin-port OSFP to 2x400Gb/s OSFP Passive Direct Attach Copper Cable (DAC)

The MCP4Y10 series from NVIDIA delivers high‑density 800Gb/s passive DAC connectivity in a twin‑port OSFP form factor. The MCP4Y10-N002 (2‑meter variant) uses 26AWG copper pairs to provide reliable, loss‑optimized transmission for distances up to 2 meters. Designed for Quantum‑2 InfiniBand and Spectrum‑4 Ethernet environments, this cable requires no external power or signal conditioning — making it the simplest, lowest‑latency solution for switch‑to‑switch and switch‑to‑DGX H100 connections inside the same rack. EEPROM memory provides host systems with product configuration data, and the cable is fully compliant with OSFP MSA Rev. 1.12 and SFF‑8636 management interface.

• 800Gb/s aggregate bandwidth – Twin-port OSFP to 2x OSFP, supporting 2x400Gb/s breakout.
• Passive design – No active components, zero equalization latency, and negligible power draw (<0.1W per end).
• 2-meter reach (26 AWG) – Ideal for intra‑rack and adjacent switch connectivity.
• Lowest total cost of ownership – Most economical high‑speed interconnect for short distances.
• Hot‑pluggable & RoHS compliant – LSZH jacket, halogen‑free, lead‑free, and RoHS compliant.
• Protocol‑agnostic auto‑detection – Works seamlessly with InfiniBand NDR or Ethernet (800GbE) without configuration.
• I²C management interface – Based on SFF‑8636, enables real‑time cable monitoring and identification.
• Rugged and durable – Production‑tested for signal integrity, insertion loss, and crosstalk.

NVIDIA MCP4Y10 passive DACs are built around 8 high‑speed copper differential pairs per port, each operating at 100Gb/s PAM4 modulation. The twin‑port OSFP architecture allows a single cable to carry two independent 400Gb/s data streams, effectively acting as a dual‑lane 800G link. Without retimers or equalizers, the signal path remains purely passive — guaranteeing deterministic, sub‑nanosecond latency and virtually zero power consumption. Every cable length is factory‑tuned for impedance matching (100Ω nominal) to minimize reflections and signal noise. The LSZH jacket ensures safety and low smoke emission, suitable for high‑density data centers.

• Quantum‑2 InfiniBand switch to Quantum‑2 switch – Short‑range stacking or spine‑leaf interconnection within 2 meters.
• Quantum‑2 switch to DGX H100 / HGX H100 – Direct attach for GPU clusters requiring ultra‑low latency and minimal power.
• Spectrum‑4 Ethernet switch to switch or server – 800GbE top‑of‑rack cabling for AI/ML backend networks.
• High‑performance computing (HPC) and storage systems – Reliable, low‑cost links for compute nodes in same rack.

The MCP4Y10-N002 passive DAC is fully compatible with NVIDIA Quantum‑2 InfiniBand switches, Spectrum‑4 Ethernet switches, and DGX H100 server platforms. It also operates with any standard OSFP cage that follows OSFP MSA Rev. 1.12. The cable automatically adapts to InfiniBand NDR or Ethernet based on the attached switch’s signaling, requiring no manual intervention. For liquid‑cooled systems or specific mechanical constraints, flat‑top variants (‑FLT suffix) are available for 0.5m and 1m lengths; please contact Starsurge for custom mechanical requirements.

• Lowest cost per port – No active components, minimal BOM.
• Zero power consumption – 0.1W max per end vs. 1.5W for ACC and >3W for AOC.
• Deterministic sub‑nanosecond latency – No equalization or retiming delays.
• Extreme reliability – No optical interfaces to clean or fail.
• Simple cable management – Thinner 30AWG (shorter lengths) or 26AWG for 2m, flexible routing.

Hong Kong Starsurge Group Co., Limited provides full supply chain, logistics, and technical support for NVIDIA original DAC cables. Our engineers can assist with cable length selection, mechanical compatibility (flat‑top vs finned‑top), and integration with existing Quantum‑2 or Spectrum‑4 fabrics. We offer global delivery, volume pricing, and RMA services. Contact us for project‑based quotations and fast shipping from regional hubs.

• Always use ESD‑grounded wrist straps when installing or removing DAC cables.
• Do not exceed minimum bend radius: single bend 5x diameter (≈44.5mm), repeated bend 10x diameter.
• Keep protective dust caps on until installation to avoid contamination.
• Avoid pulling on the cable jacket; hold the backshell connector when plugging/unplugging.
• Operate within case temperature range 0°C to 70°C for optimal performance.