The JBX42567 represents a premium solution for professional fiber optic networking applications requiring long-distance signal transmission with minimal signal degradation. This 80-meter ST/APC to FC/UPC duplex singlemode patch cable combines superior optical performance with robust construction standards. **Technical Excellence** Built with 9/125 micron singlemode fiber core and G.657.A1 grade glass, this cable delivers industry-leading performance metrics. The measured insertion loss of ≤0.35dB (with typical values around 0.15dB) ensures minimal signal loss over the full 80-meter span. Return loss exceeding 20dB protects against signal reflection and interference. Attenuation specifications of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm accommodate both traditional and modern wavelength applications. **Build Quality and Compliance** The yellow OFNR (Optical Fiber, Non-conductive, Riser Rated) jacket provides excellent flame resistance and building code compliance. The 1.8mm outside diameter offers optimal flexibility without sacrificing durability. TAA compliance and RoHS/ELV certification ensure procurement compatibility for government and regulated institutional buyers. Testing conducted per ANSI/TIA/EIA-455-171-A standards guarantees performance consistency. **Connector Configuration** The ST/APC to FC/UPC configuration with Type A to B crossover polarity enables seamless integration into existing duplex architectures. This standard polarity arrangement eliminates guesswork and simplifies installation across diverse network environments. **Practical Advantages** At 80 meters, this patch cable covers extensive facility runs without requiring splices or additional connectors, reducing signal degradation points. Free standard shipping on orders exceeding $99 provides cost-effective procurement. Multi-warehouse availability from Danville CA, Fort Worth TX, and Beaufort SC ensures rapid delivery nationwide. **Applications** Ideal for datacenters, telecommunications facilities, enterprise networks, and telecommunications infrastructure requiring long-distance, high-reliability fiber connections. The custom length availability option accommodates non-standard installation requirements. **Support and Warranty** Backed by a 90-day limited warranty, this patch cable represents a reliable investment in network infrastructure. Professional-grade quality meets the demanding standards of network administrators and system integrators.