The JBX42560 45-meter ST/APC to FC/UPC duplex singlemode fiber patch cable represents a professional-grade solution for demanding fiber optic network installations. This cable excels in telecommunications, data center, and enterprise networking environments where signal quality and reliability are paramount. **Technical Excellence:** Built with 9/125 singlemode fiber conforming to G.657.A1 specifications, this cable delivers industry-leading performance metrics. With insertion loss of just 0.15dB typical (maximum 0.35dB) and return loss exceeding 20dB, the JBX42560 maintains signal integrity across both 1310nm and 1550nm wavelengths. The cable has been attenuation-tested to ANSI/TIA/EIA-455-171-A-2001 standards, ensuring consistent quality. **Design & Durability:** The yellow OFNR (Optical Fiber Non-conductive Riser-rated) jacket provides fire-safety compliance while the compact 1.8mm diameter allows flexible routing through cable trays and conduit. The duplex configuration with Type A to B crossover polarity is the industry standard for patch cord applications, simplifying installation and reducing compatibility issues. **Compliance & Standards:** Fully TAA compliant for government and institutional purchasing, this cable meets EU RoHS Directive 2002/95/EC requirements. Manufacturing locations across Taiwan, US, and China ensure quality oversight and supply chain reliability. **Applications:** Perfect for connecting switches, routers, and network equipment in campus networks, data centers, and telecommunications infrastructure. The 45-meter length bridges medium distances while maintaining performance specifications. **Value & Support:** Enjoy free standard shipping on orders exceeding $99, backed by a 90-day limited warranty. Custom lengths are available for non-standard installations. Multiple fulfillment locations (Danville CA, Fort Worth TX, Beaufort SC) ensure quick delivery nationwide. Choose the JBX42560 for fiber optic connections that demand reliability, performance, and compliance excellence.