AddOn ADD-Q4ARQ56MX-P2M 400GBase-CU Direct Attach Cable
The AddOn 400GBase-CU QSFP-DD direct attach cable delivers enterprise-grade connectivity for demanding data center environments. This TAA-compliant passive twinax cable features a QSFP-DD 400G connector paired with 4x QSFP56 100G connectors, enabling seamless integration with Arista Networks and Mellanox infrastructure. At 2 meters, this high-speed interconnect cable provides the bandwidth and reliability your network requires without the complexity of active components. Perfect for organizations deploying 400GBase-CU technology in modern data centers and enterprise networks.
Key Features
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400GBase-CU QSFP-DD connector — Single 400G port to 4x 100G distribution
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PAM4 signaling technology — Advanced modulation for reliable high-speed transmission
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Passive twinax construction — No power consumption, reduced latency, simplified deployment
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2-meter cable length — Optimal for rack-to-rack and switch interconnections
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Arista Networks compatible — Verified interoperability with leading network platforms
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Mellanox compatible — Seamless integration with Mellanox switching infrastructure
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TAA-compliant — Meets government procurement and compliance requirements
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Direct attach design — Eliminates transceiver modules for cost efficiency
Technical Specifications
| Specification |
Details |
| Manufacturer |
ADD-ON |
| Part Number |
ADD-Q4ARQ56MX-P2M |
| Connector Type (Transmit) |
QSFP-DD 400G |
| Connector Type (Receive) |
4x QSFP56 100G |
| Cable Type |
Passive Twinax |
| Signaling |
PAM4 (Pulse Amplitude Modulation) |
| Cable Length |
2 meters (6.56 feet) |
| Data Rate |
400 Gbps |
| Compliance |
TAA-compliant, Arista Networks Compatible, Mellanox Compatible |
| Application |
Data Center, Enterprise Network Interconnect |
Frequently Asked Questions
What is a 400GBase-CU direct attach cable used for?
A 400GBase-CU direct attach cable connects high-speed network switches and servers in data centers. This cable enables 400 Gbps connectivity by aggregating four 100G connections, making it ideal for backbone interconnects and high-performance computing environments.
Is the AddOn ADD-Q4ARQ56MX-P2M cable passive or active?
This is a passive twinax cable, meaning it requires no power supply or active electronics. Passive cables offer lower latency, reduced operational costs, and simplified installation compared to active optical cables, while maintaining reliable performance up to 2 meters.
What does TAA-compliant mean for networking cables?
TAA compliance (Trade Agreements Act) ensures the product meets U.S. government procurement standards. This certification is essential for organizations working with federal agencies or requiring compliance with government supply chain requirements.
Can I use this cable with both Arista and Mellanox equipment?
Yes, the AddOn ADD-Q4ARQ56MX-P2M is compatible with both Arista Networks and Mellanox platforms. This cross-platform compatibility provides flexibility in multi-vendor data center environments and simplifies network architecture planning.
