Cisco Compatible 1m(3ft) 400G QSFP-DD to 4x100G QSFP56 Passive Direct Attach Copper Breakout Cable
#316001
SKU: 400G-QDD-4Q-CU*
1 Reviews
Stock:
3000 in stock
Total Price:
$109
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Free shipping for orders over $99
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Available for delivery within 2 days
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3-year warranty
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30-day return and refund
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Lifetime technical support
Products Highlight
- Max Power Consumption <0.1W
- Compliant with Hot Pluggable QSFP-DD MSA and QSFP56 MSA Standard
- Supports 400G to 4×100G Ethernet interconnection
- Optics-free, Stable Short-range Connection Solution with Low Cost
- Low Insertion Loss and Ultra-low Crosstalk, with Outstanding Performance
- Compliant with RoHS Environmental Protection Standards (Lead-Free)
- After Rigorous Physical Verification Testing
- Specifications
- Features
- Applications
- Testing
- Resources
- FAQs
- Reviews
Specifications
Product Certification
Features
The 400G-QDD-4Q-CU is a high-performance, cost-effective solution designed to simplify connectivity in modern data centers and high-speed networks. This cable enables a single 400G QSFP-DD port to be split into four independent 100G QSFP56 ports, providing a flexible and efficient way to maximize port utilization and optimize network infrastructure. It is ideal for high-density 100G applications, such as interconnecting top-of-rack switches, leaf-spine architectures, or high-performance computing environments.
Applications
400G Direct Connection

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Quality Testing Program
01. Product Hardware
02. Compatibility Testing
03. Quality Control
Resource
FAQs
Can the four 100G ports after breakout operate at full speed simultaneously? Will there be any latency?
Should heat dissipation be considered during installation? Will the cables affect device ventilation?
How does the cost-performance of this breakout copper cable compare to traditional 400G-SR8 optical modules?
Customer Reviews
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Highly recommended! This cable has really surprised me with its quality and performance. I have used these breakout cables for days, no issues occur.