MCA4J80-N005 800Gb/s OSFP Active Copper Cable (ACC)

The NVIDIA® MCA4J80 is a high-performance, twin-port OSFP to 2x400Gb/s OSFP Active Copper Cable (ACC) designed for InfiniBand NDR and Ethernet networking. It delivers ultra-low latency and power efficiency, making it ideal for high-density data center environments.

MCA4J80-N005 Key Features

• 800Gb/s total bandwidth with 2x400Gb/s bidirectional ports
• Active Copper Cable (ACC) technology with integrated equalizer IC
• Supports lengths up to 5 meters with very low power consumption (1.5W per end)
• Hot-pluggable, RoHS compliant, and LSZH jacket for enhanced safety
• Compatible with InfiniBand NDR and Ethernet protocols

MCA4J80-N005 Technology

The MCA4J80 ACC utilizes 100G-PAM4 modulation across 8 channels per port. It incorporates pre-emphasis equalization to extend cable length while maintaining signal integrity. The cable is compliant with OSFP MSA Rev. 1.12 and supports SFF-8636 I²C management for real-time monitoring and identification.

MCA4J80-N005 Working Principle

Each end of the cable includes an equalizer IC that compensates for signal attenuation and distortion, enabling reliable data transmission over longer distances. The embedded EEPROM stores product identification and characteristics, allowing the host system to automatically configure the cable based on the connected switch protocol.

Applications

• Switch-to-switch connectivity in NVIDIA Quantum-2 InfiniBand and Spectrum-4 Ethernet environments
• Linking NVIDIA DGX-H100 Cedar systems to top-of-rack switches
• High-performance computing (HPC), artificial intelligence (AI), and machine learning (ML) clusters

MCA4J80-N005 Specification Table

MCA4J80-N005 Selection Table

Advantages

• Lower latency and power consumption compared to optical solutions
• Cost-effective for short-range high-speed connections
• Automatic protocol detection (InfiniBand or Ethernet)
• Robust construction with LSZH jacket and lead-free PCB

Service & Support

We offer comprehensive technical support, 24/7 customer service, and worldwide shipping. All products come with a standard warranty and certification compliance (CE, FCC, RoHS, etc.).

FAQ

Q: What is the maximum length supported by this ACC cable?
A: The cable supports up to 5 meters with active equalization.

Q: Is this cable compatible with both InfiniBand and Ethernet?
A: Yes, it automatically detects and supports both protocols.

Q: What is the power consumption per end?
A: Each end consumes a maximum of 1.5W.

Precautions

• Observe minimum bend radius: 5x diameter for single bend, 10x for repeated bends
• Use ESD protection during installation
• Do not operate outside specified temperature or humidity ranges
• Ensure proper cable management to avoid physical damage

Company Introduction

With over 10 years of industry experience, we operate a large factory supported by a strong technical team. We represent leading brands including Mellanox, Ruckus, Aruba, and Extreme. Our product range includes original new network switches, network cards, wireless access points, wireless controllers, and cables. We maintain a $10 million inventory to support large-volume orders and provide 24/7 customer and technical support.