The JBX43780 45-meter LC/UPC to ST/APC simplex singlemode fiber patch cable represents professional-grade connectivity for critical network infrastructure. Designed for telecommunications professionals, data center operators, and network integrators, this cable delivers exceptional performance across demanding applications. **Technical Specifications:** Features a 9/125 micrometer singlemode core optimized for long-distance signal transmission. The G.657.A1 glass fiber composition ensures compliance with modern bend-radius requirements while maintaining signal integrity. With an outside diameter of 1.8mm and riser-rated OFNR jacketing, this cable provides both flexibility and building-code compliance. Insertion loss specifications of ≤0.35dB (0.15dB typical) and return loss ≥20dB exceed industry standards for superior signal quality. **Connector Configuration:** The straight-through polarity design with LC/UPC to ST/APC connectors provides seamless integration into existing fiber infrastructure. This mated pair configuration supports reliable connections with minimal back-reflection, critical for sensitive optical applications. **Compliance & Sustainability:** TAA (Trade Agreements Act) compliant construction qualifies this cable for federal and government procurement. RoHS/ELV directive compliance demonstrates commitment to environmental standards. The cable undergoes rigorous attenuation testing per ANSI/TIA/EIA-455-171-A-2001 standards. **Practical Benefits:** The distinctive yellow jacket simplifies cable identification and management in complex fiber installations. Custom length availability accommodates specific deployment requirements. Manufactured in Taiwan, US, and China locations ensure reliable supply chain accessibility. A 90-day limited warranty provides peace of mind on your investment. **Applications:** Ideal for CATV systems, telecommunications networks, data centers, and enterprise networking environments requiring singlemode fiber connectivity. Perfect for upgrades to existing LC/UPC or ST/APC infrastructure. **Shipping & Support:** Free standard shipping on orders exceeding $99 from Danville CA, Fort Worth TX, or Beaufort SC locations. Professional customer support ensures successful installation and optimal performance.