OptoSpan QFSP+ to 4xSFP+ Breakout Copper Direct Attach Cable 3m (Juniper Compatible)
Best high-density breakout solution for Juniper-based data center networking.
This OptoSpan 3-meter Direct Attach Cable provides a high-performance, cost-effective solution for 40G to 10G breakout interconnects, specifically designed for Juniper compatibility. It ensures reliable, error-free data transmission across four independent channels, making it ideal for high-density data centers, servers, and switches. Manufactured with premium components and a durable PVC jacket, this passive copper cable supports multi-gigabit data rates up to 40 Gb/s. It offers dependable, low-power connectivity for short-reach applications, serving as an efficient alternative to optical modules.
$132.00
Owner Satisfaction
4.6
/ 5
Category Rank
1108
/ 6543
#1108 in Network Cables
Price vs Category Average
-63%
Below average
Reach
3
/ Meter
Who it's for
- Data center technicians organizing high-density rack environments
- Budget-conscious IT managers seeking cost-effective short-reach connectivity
- Network engineers requiring seamless integration with Juniper hardware
Who should skip it
- System administrators managing airflow in densely packed cabinets
- Engineers operating in environments with high electromagnetic interference
- Architects designing networks across distant server racks
Performance breakdown
Compatibility Assurance
Pre-programmed specifically for seamless integration with Juniper networking hardware.
Power Efficiency
Passive copper design minimizes heat and eliminates unnecessary power draw.
Signal Integrity
Delivers consistent, error-free data transmission across all four independent channels.
Build Durability
Robust PVC jacket provides reliable protection for high-density rack environments.
Deployment Versatility
Ideal for bridging high-speed 40G ports to legacy 10G infrastructure.
Cost Efficiency
Significant savings compared to traditional optical transceiver and cable combinations.
Key Specs
Reach
3 Meter
Type
QSFP+ to 4xSFP+ DAC
Mode
Copper
Bandwidth
40G
Maximum aggregate data rate
40 Gb/s
Low power consumption
0.02 W (typ.)
Material
PVC jacket, Copper conductor
Part #
QCB-40G-M003JR1
Features
- Enables 40G to 10G breakout connections
- Supports 10/40 Gigabit Ethernet standards
- Individually serialized and pre-programmed
- Designed for high-density data centers
- Cost-effective alternative to optical modules
- Passive copper design for low power
- Guaranteed compatibility with specified hardware
- Reliable short-reach connectivity
What customers say
Customer feedback highlights the cable's exceptional reliability and immediate compatibility with Juniper systems. Users consistently report a true plug and play experience, avoiding configuration headaches common with third party cables. This seamless integration and robust build quality build high confidence in network stability. The product is viewed as a high value solution delivering dependable performance without extensive troubleshooting, making it a preferred choice for critical infrastructure.
Know before you buy
This cable is designed to split a single 40G QSFP+ port on a switch into four independent 10G SFP+ connections. It is an ideal solution for connecting high-density switches to multiple servers or lower-speed networking equipment.
Yes, this cable is specifically pre-programmed and tested to ensure full compatibility with Juniper networking equipment. It is designed to be recognized by your hardware just like an original manufacturer module.
No, this is a passive copper cable. It draws a negligible amount of power—typically 0.02 watts—directly from the host port, making it a highly energy-efficient choice for short-reach connections.
This cable is rated for a maximum length of 3 meters (approximately 9.84 feet). Because it uses passive copper technology, it is intended for short-reach applications within a single rack or between adjacent server cabinets.
This direct attach cable is a more cost-effective and lower-power alternative to using separate optical transceivers and fiber patch cables. It eliminates the need for extra hardware, though it is limited to shorter distances compared to fiber optics.
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