Juniper JNP-QSFP-DAC-1M Compatible 40G QSFP+ DAC Direct Attach Cable
Best high-speed cable for short-reach data center networking.
This high-performance 40G QSFP+ to QSFP+ Copper Direct Attach Cable is engineered for cost-effective connectivity within 40G data center networks. Measuring 2.5 meters, it features four independent channels for error-free data transmission and receiving over copper. Manufactured using premium components and high-quality PVC, each cable is individually serialized, pre-programmed, and rigorously tested to ensure 100% compliance and functionality. It supports multi-gigabit data rates up to an aggregate of 40 Gb/s, making it an excellent choice for short-reach, point-to-point applications requiring low power consumption.
$82.50
Owner Satisfaction
4.7
/ 5
Category Rank
75
/ 6562
#75 in Network Cables
Price vs Category Average
-77%
Below average
Reach
2.5
/ Meter
Who it's for
- IT managers seeking cost-effective network infrastructure upgrades
- Network engineers requiring high-speed, low-latency rack connectivity
- System administrators needing quick, hassle-free Juniper hardware integration
Who should skip it
- Network teams wary of potential vendor-specific software compatibility warnings
- Data center planners requiring long-distance cable runs between racks
- Enterprise IT departments prioritizing strict OEM support and warranty compliance
Performance breakdown
Data Throughput
Delivers consistent 40Gb/s performance for demanding high-speed network environments.
Power Efficiency
Negligible power draw minimizes heat output in dense rack configurations.
Build Durability
High-quality PVC jacket provides reliable protection for standard data center routing.
Compatibility Assurance
Pre-programmed serialization ensures seamless integration with Juniper hardware ecosystems.
Signal Integrity
Four-channel full-duplex design maintains stable connections over short-reach copper links.
Installation Ease
Molded boots and flexible cabling simplify routing in tight server cabinets.
Key Specs
Reach
2.5 Meter
Type
40G QSFP+ DAC
Mode
Copper
Bandwidth
40G
Maximum aggregate data rate
40 Gb/s
Low power consumption
0.02 W (typ.)
Jacket Material
PVC
Certifications
QSFP MSA, TAA
Know before you buy
Yes, this cable is specifically pre-programmed and tested to ensure full compatibility with Juniper hardware requiring the JNP-QSFP-DAC-1M specification.
This cable is designed for short-reach connections and measures 2.5 meters (approximately 8.2 feet). It is intended for point-to-point links within a rack or between adjacent server cabinets.
No, this is a passive copper cable. It features extremely low power consumption—typically 0.02 W—and draws all necessary power directly from the host QSFP+ ports.
Yes, this cable supports multi-gigabit data rates and is compatible with InfiniBand and Fiber Channel protocols, in addition to 10/40 Gigabit Ethernet.
The cable utilizes four independent channels for full-duplex operation, which helps maintain stable, error-free data transmission across the 40 Gb/s aggregate bandwidth.
Still have a question?
Ask Hayley anything about this product before you decide.