The JBX05313 5-meter 40GBASE-CR4 QSFP+ passive direct attach cable represents the ideal connectivity solution for high-speed datacenter and enterprise network environments. Engineered specifically for Juniper platform compatibility, this cable delivers 40Gbps performance without compromise. **Key Features:** - **Passive DAC Technology**: Zero power consumption with excellent signal integrity - **28AWG Twinax Copper Construction**: Premium materials ensure optimal performance and durability - **5-Meter Length**: Ideal for mid-range rack-to-rack and switch-to-server connections - **QSFP+ Form Factor**: Universal compatibility with modern networking equipment - **IEEE 802.3ba Compliance**: Meets industry standards for 40 gigabit ethernet - **RoHS & ELV Certified**: Environmentally responsible manufacturing - **Multiple Safety Certifications**: TUV and UL approved for enterprise deployments **Technical Specifications:** Operating temperature range: 0-70°C (32-158°F), providing reliable performance in various environments. The cable replaces OEM part numbers including EX-QSFP-40GE-DAC-5M, QFX-QSFP-DAC-5M, and JNP-QSFP-DAC-5M, offering cost-effective alternatives to manufacturer cables. **Applications & Use Cases:** Ideal for datacenter interconnects, switch stacking, server-to-storage connections, and high-frequency trading environments where low latency is critical. The passive design eliminates the need for external power sources, reducing complexity and improving system reliability. **Why Choose This Cable:** This passive DAC cable offers superior value compared to active alternatives, delivering identical performance without additional power consumption or heat generation. The copper twinax construction minimizes signal loss over the 5-meter span, ensuring consistent 40Gbps throughput. Custom brand programming available for enterprise deployments. **Warranty & Support:** Backed by a 90-day limited warranty and supported by rapid shipping from U.S. locations (Danville, CA and Beaufort, SC). Free standard shipping on orders over $99.