NVIDIA MCA7J70-N005

Overview

The NVIDIA MCA7J70-N005 is an 800 Gb/s active copper splitter cable designed to expand network capacity efficiently by converting a single twin-port OSFP switch connection into four independent 200 Gb/s OSFP links. This cable is ideal for data centers and high-performance computing environments where maximizing server density and minimizing power consumption are critical. It supports distances up to five meters while maintaining low latency and draws only 1.5 W at full speed, making it a practical choice for large clusters and AI training nodes.

Key features

• Breaks out one twin-port OSFP switch connection into four separate 200 Gb/s OSFP device links, increasing connectivity without additional switch hardware.
• Active copper design with built-in equalization ensures signal integrity and low latency over cable lengths up to five meters.
• Supports eight lanes of 100G-PAM4 signaling that auto-negotiate between InfiniBand and Ethernet protocols, simplifying mixed network environments.
• Consumes only 1.5 W at full operation, helping to reduce overall power usage in dense server racks.
• Constructed with 26 AWG copper conductors and a low-smoke zero-halogen (LSZH) jacket to meet strict data center safety and environmental standards.
• Includes an integrated EEPROM that provides accurate identification and configuration data to connected switches and adapters, streamlining deployment and management.

Key specs

• Bandwidth: 800 Gb/s total breakout capacity
• Connector type: One twin-port OSFP on switch side, four 200 Gb/s OSFP connectors on device side
• Signal lanes: Eight lanes of 100G-PAM4 signaling
• Maximum cable length: 5 meters
• Power consumption: 1.5 W at full speed
• Cable gauge: 26 AWG copper conductors
• Jacket material: Low-smoke zero-halogen (LSZH)
• Protocol support: InfiniBand and Ethernet auto-negotiation

Connectivity and compatibility

This splitter cable is designed to connect Quantum-2 or Spectrum-4 leaf switches to multiple OSFP-based ConnectX-7 adapters within the same rack or adjacent racks. Its compatibility with both InfiniBand and Ethernet protocols makes it versatile for various cluster configurations, including high-performance computing, AI training, and storage server setups. The integrated EEPROM ensures seamless recognition by host systems, reducing setup complexity.

Ideal uses and environments

The MCA7J70-N005 fits well in data centers where space and power efficiency are priorities. It is a strong choice for network architects looking to increase server density without adding extra switch ports or hardware. Its low latency and high throughput make it suitable for demanding applications such as AI model training, scientific simulations, and large-scale storage networks. The cable’s compliance with safety standards also makes it appropriate for environments with strict fire and environmental regulations.

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