Cable Types: MCA7K20-X02A / O4O224-1.6T-ACCH

Brand: NVIDIA/Mellanox (InfiniBand)

Cable : 1m (3ft) / 1.5m (5ft) / 2m (7ft) / 2.5m (8.2ft) NVIDIA/Mellanox MCA7K20-X02A (980-9IAQ5-00X02A) Compatible 1.6T ACC OSFP224 IHS/Closed Finned Top 8x200G PAM4 to 4x400G OSFP224 RHS/Flat Top 2x200G PAM4 InfiniBand XDR Active Copper Splitter Cable for Quantum-X800 Switch to 4x400G NVIDIA ConnectX-8 OSFP NICs and NVIDIA DGX B300 / GB300 Clusters

The NVIDIA/Mellanox MCA7K20-X02A (980-9IAQ5-00X02A) Compatible 1.6T ACC OSFP224 Active Copper Splitter Cable is an ultra-high-density 1.6T-to-4x400G breakout interconnect solution engineered for next-generation InfiniBand XDR and 1.6T Ethernet AI data centers. Supporting 8x200Gb/s PAM4 electrical lanes, this Active Copper Cable (ACC) splits a single 1.6Tb/s twin-port OSFP224 host interface into four independent 400Gb/s (2x200G PAM4) OSFP224 endpoints, delivering flexible, low-latency, and high-bandwidth rack-level connectivity.

100% verified on original hardware, the MCA7K20-X02A cable features an Integrated Heat Sink (IHS / Closed Finned Top) connector shell on the 1.6T switch end and four Riding Heat Sink (RHS / Flat Top) connectors on the breakout end. It is purpose-built to connect 1.6T switches (such as the NVIDIA Quantum-X800 series) directly to four 400G network interface cards, including the NVIDIA ConnectX-8 OSFP NICs. Compared to passive DACs, active copper architecture provides enhanced signal integrity over longer reaches up to 2.5m while maintaining low power consumption (2.5W max), making it ideal for NVIDIA DGX B300 and GB300 GPU clusters.

Key Features

• 100% Verified Compatibility: Fully compatible with NVIDIA/Mellanox MCA7K20-X02A (980-9IAQ5-00X02A) for seamless integration into Quantum-X800 InfiniBand XDR networks.
• 1.6T to 4x400G ACC Breakout Architecture: Converts a single 1.6Tb/s (8x200G PAM4) OSFP224 port into four 400Gb/s (2x200G PAM4) OSFP224 ports to maximize switch port utility.
• Engineered for Next-Gen AI Clusters: Tailored specifically for deployment in high-density NVIDIA DGX B300 and GB300 GPU cluster environments.
• Active Copper Cable (ACC) Performance: Provides superior signal integrity and extended reach compared to passive DACs with a maximum power consumption of only 2.5W.
• Hybrid IHS to RHS Thermal Shells: Features a Closed Finned Top (IHS) profile on the 1.6T switch side for air-cooled chassis and Flat Top (RHS) profiles on the 4x400G NIC side for tight server clearances.
• LSZH Jacket Material: Constructed with Low Smoke Zero Halogen (LSZH) jacketing for strict data center safety compliance.

Technical Specifications