400G QSFP-DD Passive Direct Attach Copper (DAC) Twinax Cable — 1 Meter
Upgrade your data center interconnects with this 400G QSFP-DD to QSFP-DD passive DAC cable. Delivering full 400 Gigabit Ethernet bandwidth over cost-effective copper, this 1-meter twinax cable eliminates the need for expensive transceivers — just plug in and connect at 400G with zero power consumption.
Specifications
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Data Rate: 400Gbps (8 x 50Gbps PAM4 lanes)
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Connector: QSFP-DD on both ends
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Cable Type: Passive twinax copper, 30AWG
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Length: 1 meter (3.3 ft)
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Standards: QSFP-DD MSA, IEEE 802.3cd, SFF-8636 compliant
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Compliance: RoHS compliant, lead-free
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Power: Zero power consumption (passive design)
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Temperature: 0°C to 70°C operating range
Compatibility
Compatible with all major 400G QSFP-DD switch platforms including Cisco, Arista, Juniper, Dell, NVIDIA/Mellanox, and more. Ideal for top-of-rack (ToR) switch-to-switch, switch-to-server, and GPU cluster interconnects in data centers and AI/HPC environments.
Why Buy from Reef Telecom?
- Industry-leading 10-year warranty on all equipment
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Free shipping on orders over $300
- Every cable tested for signal integrity before shipping
- Volume pricing available for spine/leaf deployments
Also available in 2m lengths. Need a different length or breakout configuration? Contact us for custom solutions.