40GBase-CU QSFP+ to 4xSFP+ Direct Attach Cable for Dell Networks
The Add-On DAC-QSFP-4SFP-10G-1M-AO is a 40GBase-CU QSFP+ to 4xSFP+ direct attach cable engineered for high-performance data center and enterprise networking. This Dell-compatible breakout cable delivers reliable 40G to 4x10G connectivity over passive copper, making it ideal for organizations upgrading network infrastructure without replacing existing SFP+ equipment. With a 1-meter reach and proven compatibility with Dell systems, this QSFP+ breakout cable reduces deployment costs while maintaining line-rate performance in demanding networking environments.
Key Features
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40GBase-CU QSFP+ to 4xSFP+ breakout — Splits single 40G QSFP+ port into four 10G SFP+ connections
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Passive copper construction — No active electronics required; operates at full line rate with minimal latency
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1-meter (3.3ft) reach — Ideal for short-distance interconnects within racks and adjacent equipment
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Dell-compatible design — Certified for Dell PowerEdge servers and networking switches
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Direct attach technology — Eliminates transceiver modules for cost-effective, low-power connectivity
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Hot-pluggable connectors — Easy installation and replacement without system downtime
Technical Specifications
| Specification |
Details |
| Part Number |
DAC-QSFP-4SFP-10G-1M-AO |
| Manufacturer |
Add-On |
| Cable Type |
40GBase-CU QSFP+ to 4xSFP+ Breakout |
| Connector Type |
QSFP+ (1x) to SFP+ (4x) |
| Data Rate |
40 Gbps (QSFP+) / 10 Gbps per SFP+ channel |
| Cable Length |
1.0 meter (3.3 feet) |
| Medium |
Passive Copper |
| Maximum Reach |
1 meter over passive copper |
| Operating Temperature |
0°C to 70°C |
| Storage Temperature |
-40°C to 85°C |
| Compatibility |
Dell PowerEdge, Dell Networking switches, and standard QSFP+/SFP+ equipment |
| Standards Compliance |
IEEE 802.3bq, SFF-8436, SFF-8472 |
Frequently Asked Questions
What is a 40GBase-CU QSFP+ to 4xSFP+ breakout cable used for?
This direct attach cable allows you to connect a single 40G QSFP+ port to four separate 10G SFP+ devices. It's commonly used in data centers to maximize port utilization when upgrading from 10G to 40G infrastructure while maintaining compatibility with existing SFP+ equipment.
Is the DAC-QSFP-4SFP-10G-1M-AO compatible with Dell servers?
Yes, this Dell-compatible QSFP+ breakout cable is certified for Dell PowerEdge servers and Dell networking switches. It integrates seamlessly with Dell's network infrastructure and supports standard QSFP+/SFP+ protocols.
How far can a passive copper direct attach cable reach?
The 40GBase-CU passive copper cable supports a maximum reach of 1 meter (3.3 feet). This distance is suitable for rack-level interconnects and short-distance data center connections. For longer distances, active optical cables (AOC) are recommended.
Do I need transceivers with this QSFP+ to SFP+ cable?
No. This direct attach cable is a passive solution that requires no active transceivers or power. It connects directly to QSFP+ and SFP+ ports, reducing cost and power consumption compared to active solutions.
