40G QSFP+ to 4x10G SFP+ Passive Direct Attach Copper Breakout Cable
The ENET QFX-QSFP-DACBO-3M-ENC is a high-performance 40G QSFP+ to 4x10G SFP+ breakout cable engineered for data center environments requiring reliable, low-latency connectivity. This 3-meter passive direct attach copper cable delivers four independent 10 Gigabit Ethernet connections from a single 40G QSFP+ port, making it ideal for network infrastructure upgrades, server interconnects, and switch-to-switch deployments. Built with premium twinax copper construction and Juniper QFX-QSFP-DACBO-3M compatibility, this DAC breakout cable eliminates the need for active electronics while maintaining exceptional signal integrity over short distances.
Key Features
- 40G QSFP+ to 4x10G SFP+ breakout configuration for flexible port expansion
- 3-meter passive direct attach copper (DAC) twinax cable design
- Juniper QFX-QSFP-DACBO-3M compatible for seamless integration
- Low-latency, short-reach connectivity ideal for data center applications
- No active electronics required — passive technology reduces power consumption
- High-speed 10 Gigabit Ethernet per channel with reliable signal transmission
- Durable twinax copper construction for long-term performance
- Cost-effective alternative to optical transceivers for short distances
Technical Specifications
| Specification |
Details |
| Manufacturer |
ENET Solutions |
| Part Number |
QFX-QSFP-DACBO-3M-ENC |
| Cable Length |
3 meters |
| Connector Type (Source) |
QSFP+ (40G) |
| Connector Type (Breakout) |
4x SFP+ (10G each) |
| Cable Type |
Passive Direct Attach Copper (DAC) Twinax |
| Data Rate |
40 Gigabit Ethernet (4x10G) |
| Compatibility |
Juniper QFX-QSFP-DACBO-3M |
| Power Consumption |
Passive — No power required |
| Operating Temperature |
0°C to 70°C |
| Application |
Data Center, High-Performance Networking |
Frequently Asked Questions
What is a 40G QSFP+ to 4x10G SFP+ breakout cable used for?
This breakout cable splits a single 40 Gigabit QSFP+ port into four independent 10 Gigabit SFP+ connections. It's commonly used in data centers to maximize port utilization, connect multiple servers to a single switch port, or upgrade legacy 10G infrastructure without replacing entire switch hardware.
Is the ENET QFX-QSFP-DACBO-3M-ENC passive or active?
This is a passive direct attach copper (DAC) cable, meaning it requires no external power or active electronics. Passive DAC cables are ideal for short-distance connections (typically up to 5 meters) and offer lower latency and reduced power consumption compared to active optical alternatives.
What is the maximum cable length for this 40G QSFP+ breakout cable?
The 3-meter length of this cable is optimized for short-reach data center deployments. Passive twinax DAC cables typically support distances up to 5 meters without signal degradation, making this 3m cable ideal for rack-to-rack or switch-to-server connections.
Is this cable compatible with Juniper equipment?
Yes, the ENET QFX-QSFP-DACBO-3M-ENC is Juniper QFX-QSFP-DACBO-3M compatible, ensuring reliable performance with Juniper QFX switches and other compatible networking equipment. Always verify compatibility with your specific hardware before deployment.
