The JBX05397 is a professional-grade 1-meter 40GBASE-CR4 QSFP+ active direct attach copper cable designed specifically for Juniper network infrastructure. This cable serves as a direct replacement for OEM part number JNP-QSFP-DAC-1MA, providing seamless compatibility with existing Juniper deployments. **Technical Specifications:** Operating at 40Gbps data rates, this cable meets IEEE 802.3ba and SFF-8436 standards for reliable, high-speed data transmission. The 30AWG twinax copper construction delivers excellent signal integrity over the 1-meter span, while the active DAC architecture extends operational range beyond passive alternatives. Connectors feature QSFP+ to QSFP+ configuration for direct equipment connection. **Performance & Reliability:** The cable maintains optimal performance across an operating temperature range of 0-70°C (32-158°F), suitable for climate-controlled data center environments. RoHS and ELV compliance ensures environmental responsibility, with additional UL and TUV certifications confirming safety and quality standards. The durable plastic jacketing protects the twinax core from physical damage. **Application Benefits:** Perfect for data center interconnects, server-to-switch connections, and high-speed networking applications requiring low-latency transmission. The compact 1-meter length accommodates standard rack configurations while minimizing cable clutter. Active DAC technology provides power-efficient operation without requiring external power supplies, reducing infrastructure complexity. **Procurement Advantages:** Ships from multiple US locations (Danville, CA and Beaufort, SC), ensuring rapid delivery. Free standard shipping on orders over $99 reduces total cost of ownership. Custom brand programming available for enterprise deployments requiring standardized labeling. Backed by a 90-day limited warranty covering manufacturing defects. **Quality Assurance:** Manufactured in Vietnam and China under strict quality controls, this cable replaces OEM alternatives while offering superior value. Harmonization code 8544.42.9090 confirms proper commodity classification for shipping and compliance purposes.