The 65-Meter LC/APC to ST/UPC Duplex Singlemode Fiber Patch Cable is engineered for telecommunications professionals, data center operators, and network integrators seeking reliable, standards-compliant fiber optic solutions. This comprehensive overview details why this cable represents an excellent choice for demanding connectivity requirements. **Technical Excellence and Performance** Built with a 9/125 singlemode fiber core and G.657.A1 glass fiber specification, this cable delivers superior performance characteristics. The measured insertion loss of ≤0.35dB (typical 0.15dB) ensures minimal signal degradation, while return loss ≥20dB provides excellent reflectance control. These specifications translate to reliable, high-speed data transmission over the cable's full 65-meter length, supporting both 1310 nm and 1550 nm wavelengths with specified attenuation rates. **Professional-Grade Construction** The 1.8mm outside diameter jacket combines durability with flexibility for routing through cable trays and conduits. OFNR (Optical Fiber Non-Conductive Riser) rating ensures code compliance for vertical installations in multi-story facilities. The cable's construction meets ANSI/TIA/EIA-455-171-A standards, with attenuation verified through rigorous testing protocols. **Connector Technology** The LC/APC to ST/UPC connector pairing accommodates Type A to B crossover polarity, the industry standard for duplex patch cord applications. LC connectors provide compact, high-density connection capability, while ST/UPC connectors offer proven reliability in established network infrastructure. This configuration minimizes compatibility concerns and supports seamless integration with existing systems. **Compliance and Sustainability** TAA compliance ensures suitability for government and institutional procurement. RoHS and ELV certifications demonstrate environmental responsibility, eliminating hazardous substances from the manufacturing process. Multiple manufacturing locations (Taiwan, US, China) provide supply chain flexibility. **Practical Advantages** The distinctive yellow jacket facilitates easy identification and documentation in complex cable environments. Available in custom lengths for exact deployment requirements, this cable eliminates wasteful excess or problematic length shortages. The 90-day limited warranty provides confidence in product reliability. **Applications** Ideal for data center interconnects, campus network backbone links, telecom infrastructure, and any application requiring 65-meter singlemode fiber connectivity. The cable supports high-speed Ethernet, Fibre Channel, and other fiber-optic protocols demanding minimal signal loss. **Shipping and Support** Ships from strategic US locations (Danville CA, Fort Worth TX, Beaufort SC) for rapid delivery. Free standard shipping on orders exceeding $99 reduces total deployment costs.