The JBX43433 FC/APC to FC/UPC Simplex 9/125 Singlemode Fiber Patch Cable represents professional-grade optical connectivity for demanding telecommunications and data center applications. This 12-meter cable combines precision engineering with proven reliability, making it the preferred choice for network technicians and system integrators who demand consistent, high-performance signal transmission. **Technical Excellence:** Constructed with a 9/125 singlemode core utilizing G.657.A1 glass fiber, this cable delivers superior optical performance. The insertion loss specification of ≤0.35dB (with typical performance of just 0.15dB) ensures minimal signal degradation, while the return loss of ≥20dB guarantees excellent signal integrity. Attenuation rates of 0.25dB/km at 1310nm and 0.35dB/km at 1550nm meet industry standards for long-distance optical transmission. All specifications are verified through testing in accordance with ANSI/TIA/EIA-455-171-A-2001 standards. **Build Quality and Compliance:** The cable's 1.8mm outer diameter and OFNR riser-rated yellow jacket provide both flexibility and compliance with stringent building codes. This riser rating qualifies the cable for installation in vertical runs between building floors without conduit, offering installation flexibility without compromising safety standards. RoHS/ELV compliance ensures environmental responsibility, while TAA compliance makes this cable suitable for government and institutional procurements. **Connectivity and Configuration:** The FC/APC to FC/UPC configuration provides a straight-through connection ideal for cross-platform network integration. The FC/APC (angled physical contact) to FC/UPC (ultra physical contact) design accommodates diverse equipment in heterogeneous network environments, making this cable invaluable for network upgrades and system expansions. **Practical Advantages:** Backed by a 90-day limited warranty and available in custom lengths for specialized applications, this cable adapts to unique installation requirements. With free standard shipping on orders exceeding $99 and convenient fulfillment from multiple U.S. locations (Danville CA, Fort Worth TX, and Beaufort SC), expedited delivery is readily available when needed. **Ideal Applications:** Perfect for data center patch panels, telecommunications cross-connects, network backbone connections, and any installation requiring reliable single-mode fiber transmission with mixed connector types. Whether you're connecting legacy FC/UPC systems to newer FC/APC equipment or establishing new network infrastructure, this cable provides the performance specifications and compliance certifications demanded by professional installations.