The JBX05395 1-meter 40GBASE-CR4 QSFP+ Passive Direct Attach Copper Cable represents the ideal solution for data center professionals seeking reliable, cost-effective high-speed networking connectivity. Engineered specifically for Juniper-compatible infrastructure, this premium DAC cable delivers consistent 40GB performance with minimal power consumption and zero latency compared to active alternatives. **Key Features & Benefits:** This passive copper DAC cable eliminates the complexity and cost associated with active electronics while maintaining exceptional signal integrity. The 30AWG twinax copper construction ensures optimal conductivity and durability, while the protective plastic jacketing provides mechanical protection during installation and use. At just 1 meter in length, it's perfectly suited for direct switch-to-switch connections in dense rack environments. **Technical Excellence:** Fully compliant with IEEE 802.3ba specifications, this cable meets the demanding requirements of modern enterprise networking. RoHS, TUV, and UL certifications confirm adherence to international safety and environmental standards. The cable operates reliably across extended temperature ranges (0-70°C), making it suitable for various data center environments. **Compatibility & Replacement:** Direct replacement for authentic Juniper OEM components including EX-QSFP-40GE-DAC-1M, JNP-QSFP-DAC-1M, and QFX-QSFP-DAC-1M, ensuring seamless integration with existing infrastructure. Compatible with Juniper EX series switches, QFX series switches, and other Juniper-compatible QSFP+ equipped devices. **Value & Support:** Backed by a comprehensive 90-day limited warranty and supported by expert technical guidance. Ships from strategically located U.S. warehouses in Danville, CA and Beaufort, SC with free standard shipping on orders exceeding $99. Custom brand programming options available for enterprise deployments. This cable represents an excellent investment in reliable network infrastructure at competitive pricing.