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40G QSFP+ to 4×10G SFP+ Direct Attach Breakout Cable, 30AWG, Passive, 10m
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Product Highlights:
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Cost-effective 40G-to-4×10G breakout connectivity
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Low-power, low-latency passive copper design
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Excellent signal integrity with 30AWG high-quality copper conductors
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Hot-swappable QSFP+ and SFP+ compliance
Table of Contents
Description
The 40G QSFP+ to 4×10G SFP+ Passive Direct Attach Copper Cable (DAC) is designed for short-range, high-density interconnects between 40G switches and 10G servers or network appliances. Featuring one QSFP+ connector on the host side and four SFP+ connectors on the downstream side, this breakout cable enables simple, low-cost deployment in top-of-rack (ToR), middle-of-row (MoR), and storage network environments.
Built with premium 30AWG copper wire and compliant with SFF-8436/SFF-8431 standards, the cable supports 40Gbps aggregated bandwidth split into four independent 10Gbps channels. It is 100% passive, requiring no additional power while delivering stable, low-latency performance. This makes it ideal for cloud data centers, enterprise networks, and HPC clusters seeking cost-efficient server-to-switch connectivity.
Specification
| Product Type | QSFP+ to 4×SFP+ Breakout DAC |
|---|---|
| Connector A | 1× QSFP+ |
| Connector B | 4× SFP+ |
| Cable Type | Passive Copper Cable |
| Wire Gauge | 30AWG |
| Length | 10 meters |
| Data Rate | 40Gbps → 4×10Gbps |
| Compliance | SFF-8436 / SFF-8431 |
| Protocol Support | Ethernet, Fibre Channel, InfiniBand SDR/DDR |
| Operating Temp | 0°C to 70°C |
| RoHS/CE | Yes |
Features
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40G QSFP+ to 4×10G SFP+ breakout configuration
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Passive, low-power design with no active components
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High signal integrity copper cable for stable performance
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Compliant with SFF-8436 (QSFP+) and SFF-8431 (SFP+) MSA standards
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Hot-swappable and field-installable
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Supports Ethernet, Fibre Channel, and InfiniBand (SDR/DDR)
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Compatible with Cisco, Arista, Juniper, Brocade, HPE, Dell, and more
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Ideal for short-distance ToR/MoR deployments
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Robust strain relief for enhanced mechanical durability
Applications
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40G to 4×10G server-to-switch connectivity
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Data center ToR server uplinks
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Storage and SAN networks
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InfiniBand SDR/DDR interconnects
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Enterprise switching, routing, and HPC
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Rack-to-rack or shelf-to-shelf intra-rack cabling
FAQs (3–5 Highly Relevant)
Q1: Is this cable compatible with my switch brand (Cisco, Arista, Juniper, etc.)?
Yes. The cable can be programmed for compatibility with major OEM vendors and is fully MSA-compliant.
Q2: What is the maximum recommended distance for this DAC?
This passive 30AWG DAC is suitable for up to 10 meters, ideal for intra-rack or adjacent rack connections.
Q3: Can this breakout cable split one 40G port into four independent 10G links?
Yes. Each SFP+ connector operates as an independent 10G channel.
Quality Qulifications and Compliance
To get the detailed certification, please go to the Compliance.
Please Note: Our products comply with all internationally recognized and industry-standard specifications. For customized or special requirement products, we carry out testing and standards in accordance with the conformity criteria specified in the contract.
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