The JBX42746 75-meter ST/APC to LC/UPC duplex singlemode fiber patch cable represents professional-grade connectivity infrastructure designed for mission-critical applications. Whether deploying in data centers, telecommunications facilities, or enterprise networks, this cable delivers reliable signal transmission with minimal signal degradation. **Technical Excellence** This duplex cable features dual 9/125 singlemode fiber strands, the industry standard for long-distance, high-bandwidth telecommunications. The G.657.A1 glass fiber specification ensures optimal performance across 1310nm and 1550nm wavelengths, with measured attenuation of 0.25 dB/km at 1310nm or 0.35 dB/km at 1550nm. The low insertion loss (≤0.35dB typical) and high return loss (≥20dB) minimize signal reflection and loss, critical for maintaining signal integrity across 75-meter spans. **Connector Configuration** The ST/APC to LC/UPC connector pairing accommodates diverse network architectures. ST/APC connectors feature angled physical contact and high return loss performance, while LC/UPC connectors offer compact form factors ideal for high-density installations. The Type A to B crossover polarity is standard for duplex patch cords, ensuring plug-and-play compatibility with existing infrastructure. **Durability and Compliance** The yellow 1.8mm outer diameter jacket is OFNR (Optical Fiber Non-Conductive Riser) rated, meeting fire code requirements for vertical cable runs in buildings. TAA (Trade Agreements Act) compliance makes this cable eligible for government and institutional procurement. Full RoHS/ELV directive certification ensures environmental responsibility and workplace safety. **Flexibility and Convenience** Available in custom lengths beyond the standard 75m offering, this cable adapts to specific installation requirements. Ships from strategically located US warehouses (Danville CA, Fort Worth TX, Beaufort SC) ensuring rapid delivery. Free standard shipping on orders exceeding $99 reduces total cost of ownership. The 90-day limited warranty provides confidence in product reliability. **Applications** Ideal for telecommunications backbones, data center interconnects, enterprise LAN extensions, and fiber-to-the-building installations requiring 75-meter reaches with duplex communication capability. Suitable for both new installations and equipment upgrades where ST/APC and LC/UPC compatibility exists. Choose JBX42746 for performance, compliance, and reliability in critical fiber optic applications.