The JBX42671 9-meter FC/APC to LC/UPC duplex singlemode fiber patch cable represents a professional-grade solution for demanding network environments requiring superior signal integrity and reliability. Designed to bridge FC/APC and LC/UPC connections seamlessly, this cable accommodates mixed-vendor infrastructure while maintaining exceptional performance standards. **Technical Excellence:** Constructed with 9/125 singlemode fiber featuring G.657.A1 specifications, this cable delivers the precision required for modern telecommunications. The 1.8mm outside diameter ensures easy routing through tight spaces, while the OFNR-rated yellow jacket provides fire-resistant protection and visual identification in crowded cable trays. Attenuation specifications of 0.25 dB/km at 1310 nm and 0.35 dB/km at 1550 nm ensure minimal signal loss across critical wavelengths. **Performance Specifications:** With insertion loss rated at ≤0.35dB (typical 0.15dB) and return loss ≥20dB, this cable exceeds industry standards for minimal signal degradation. Testing conducted per ANSI/TIA/EIA-455-171-A-2001 ensures consistent, reliable performance across all units. **Compliance & Certification:** Fully TAA-compliant and RoHS/ELV certified per EU directive 2002/95/EC, making it ideal for government procurement, educational institutions, and organizations prioritizing environmental responsibility. Manufactured across Taiwan, US, and China facilities ensures global supply chain reliability. **Practical Benefits:** The Type A to B crossover polarity represents the most common duplex patch cord configuration, requiring no additional adapters for standard applications. Available in custom lengths for specific installation requirements, this cable eliminates the need for field splicing. Free standard shipping on orders over $99 and fast fulfillment from three distribution centers across the US. **Ideal Applications:** Perfect for data centers, telecommunications hubs, enterprise network upgrades, and long-distance signal transmission. Whether replacing legacy equipment or expanding capacity, this cable provides the reliability mission-critical networks demand. The 90-day limited warranty provides peace of mind for your infrastructure investment.