The JBX05859 1.5m 100GBASE-CR4 QSFP28 passive direct attach copper cable represents a premium solution for high-speed data center networking. Engineered specifically for Juniper QFX and MX series switches, this cable delivers reliable 100Gb/s performance at an economical price point compared to active optical alternatives. **Technical Excellence:** Constructed with 30AWG twinax copper conductors and protective plastic jacketing, this cable meets the demanding requirements of IEEE 802.3bj specifications and QSFP28 MSA standards. The passive design eliminates the need for power-consuming active electronics, reducing operational costs and thermal footprint in dense server environments. **Compliance & Certifications:** Fully compliant with RoHS (EU Directive 2002/95/EC), TUV, and UL certifications, this cable ensures safe deployment in regulated environments. Manufacturing in Vietnam and China adheres to international quality standards. **Performance Specifications:** - Data Rate: 100Gb/s - Cable Length: 1.5 meters - Connector Type: QSFP28 to QSFP28 - Operating Temperature: 0-70°C (32-158°F) - Gauge: 30AWG twinax **Compatibility & Replacement:** Directly compatible with Juniper platforms, this cable replaces OEM part numbers QFX-QSFP28-DAC-150CM and JNP-100G-DAC-150CM. The 1.5-meter length provides optimal reach for typical rack-to-rack and switch-to-switch connections without excessive slack. **Ideal Applications:** Perfect for enterprise data centers, high-performance computing clusters, and service provider environments requiring low-latency, high-capacity interconnects. The passive DAC technology suits short-reach applications where active components would add unnecessary complexity and cost. **Value & Support:** Offering free standard shipping on orders over $99, competitive pricing, and a 90-day limited warranty. Custom brand programming is available for large-scale enterprise deployments. Ships from multiple US locations (Danville, CA and Beaufort, SC) for faster delivery.