The JBX42736 ST/APC to LC/UPC duplex singlemode fiber patch cable represents a professional-grade solution for mission-critical fiber optic network deployments. Manufactured to exacting standards, this 25-meter cable combines reliability, performance, and compliance in a single comprehensive package. **Technical Specifications:** This duplex cable features dual 9/125 singlemode cores with G.657.A1 glass fiber, optimized for long-distance signal transmission with minimal signal degradation. The cable demonstrates exceptional optical performance with insertion loss of ≤0.35dB (typical 0.15dB) and return loss exceeding 20dB, ensuring signal integrity across your network infrastructure. **Connector Technology:** The ST/APC male connectors provide superior performance with angled physical contact (APC) design, while LC/UPC female connectors offer universal compatibility. This Type A to B crossover configuration is industry-standard for duplex applications, ensuring seamless integration with existing network equipment. **Compliance & Standards:** Fully TAA compliant for government and federal procurement, this cable meets rigorous RoHS/ELV environmental directives. Manufacturing adheres to ANSI/TIA/EIA-455-171-A-2001 standards for attenuation testing, guaranteeing consistent quality across all units. **Physical Characteristics:** The bright yellow OFNR (Optical Fiber Non-conductive Riser-rated) jacket provides both visual identification and compliance for building-code installations. At just 1.8mm outside diameter, the cable offers excellent flexibility for routing through tight spaces and cable management systems. **Applications:** Ideal for data center upgrades, telecommunications networks, enterprise campus backbone connections, and any installation requiring reliable singlemode fiber transmission over 25-meter distances. **Shipping & Support:** Enjoy free standard shipping on orders exceeding $99. Backed by a 90-day limited warranty and available in custom lengths to meet specific installation requirements. Ships from multiple US locations for expedited delivery.