The JBX85204 50-meter SC/ST duplex singlemode fiber patch cable represents the gold standard in professional fiber optic connectivity. Engineered with precision engineering and quality materials, this cable delivers consistent, high-speed signal transmission for critical network applications. **Key Technical Features:** Built with a 9/125 singlemode core utilizing premium G.657.A1 glass fiber, the cable achieves exceptional performance metrics. With insertion loss of ≤0.35dB at 1310nm (0.15dB typical) and ≥20dB return loss, this cable minimizes signal degradation over the full 50-meter length. Attenuation specifications of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm ensure reliable long-distance transmission. **Construction & Compliance:** The duplex design with Type A to B crossover polarity (standard for duplex patch cords) enables simultaneous bidirectional communication. The 1.8mm outside diameter provides flexibility in cable routing while maintaining durability. OFNR riser-rated jacketing ensures safe installation in plenum and riser spaces. TAA compliance and RoHS/ELV certification verify adherence to government procurement standards and environmental regulations. **Distinctive Advantages:** The vibrant yellow jacket aids rapid identification in crowded cable trays and network closets, reducing installation errors and maintenance time. SC/UPC to ST/UPC connectors provide universal compatibility with standard telecommunications infrastructure. Custom length availability allows tailored solutions for specific installations. **Ideal Applications:** - Data center backbone connectivity - Long-distance telecommunications - Enterprise network infrastructure - Government and military installations - Telecom provider networks - Broadcast and multimedia transmission **Quality Assurance:** Attenuation testing complies with ANSI/TIA/EIA-455-171-A-2001 standards. Every cable undergoes rigorous quality control. A 90-day limited warranty provides confidence in your investment. Ships from multiple U.S. locations (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on orders exceeding $99. Choose the JBX85204 for mission-critical fiber optic applications requiring uncompromising quality and reliable performance.