The JBX05215 40GBASE-CR4 QSFP+ breakout DAC cable is a high-performance networking solution designed specifically for Juniper QFX network environments. This 2-meter passive direct attach copper cable represents an excellent alternative to expensive optical solutions while maintaining superior signal integrity and reliability. ## Technical Specifications This cable features a QSFP+ male connector on one end that breaks out into four independent SFP+ connectors, enabling flexible port configuration and network scalability. The 30AWG twinax copper construction provides optimal impedance matching and signal fidelity for 40GBASE-CR4 transmission standards. Measuring 2 meters in length, it accommodates typical data center rack spacing and cabinet interconnections without requiring excessive slack or complex routing. ## Performance and Compatibility Qualified to IEEE 802.3ba and SFF-8436 specifications, this cable delivers reliable 40GB data rates while maintaining backward compatibility with Juniper QFX switching platforms. The passive design eliminates power consumption, reducing operational costs and heat generation within equipment racks—a critical advantage in dense data center environments. ## Compliance and Certifications This product meets rigorous international standards including RoHS (Restriction of Hazardous Substances), EU directive 2002/95/EC, TUV, and UL certifications. These compliance credentials ensure safe operation in enterprise environments and support sustainability initiatives. ## Ideal Applications Perfect for data center interconnects, server farm networking, storage area networks (SANs), and high-performance computing clusters. The breakout design enables granular port allocation without requiring separate optical transceivers, resulting in significant cost savings. Organizations upgrading from slower 10GBASE-SR connections or consolidating equipment appreciate the simplicity and reliability of this solution. ## Operating Conditions Designed to operate reliably between 0-70°C, supporting standard data center environmental controls. The plastic jacketing provides mechanical protection while maintaining flexibility for installation in tight spaces. ## Warranty and Support Backed by a 90-day limited warranty and available with custom brand programming options. Ships from multiple U.S. locations (Danville, CA and Beaufort, SC) with free standard shipping on orders exceeding $99, ensuring rapid deployment capabilities.