The JBX91191 SC/ST duplex singlemode fiber patch cable represents professional-grade connectivity for mission-critical network infrastructure. This 9-meter cable combines precision engineering with proven reliability, making it the preferred choice for telecom operators, data centers, and enterprise IT departments. **Technical Excellence** Built with 9/125 singlemode fiber core and advanced G.657.A1 glass, this cable delivers ultra-low attenuation: 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm. Insertion loss testing of ≤0.35dB (0.15dB typical) ensures minimal signal degradation over distance, critical for long-haul applications. Return loss specification of ≥20dB guarantees signal integrity and network performance. **Superior Design Features** The duplex configuration with Type A to B crossover polarity accommodates standard network topologies without additional adapters. SC/UPC to ST/UPC connectors provide industry-standard connectivity with proven performance metrics. The 1.8mm PVC jacket combined with OFNR riser rating enables safe installation in vertical cable trays and building pathways while maintaining flexibility for routing. **Compliance & Quality Assurance** TAA (Trade Agreements Act) compliant and RoHS/ELV certified, this cable meets stringent government and environmental standards. Manufactured in Taiwan, US, or China facilities with quality oversight, each cable undergoes attenuation testing per ANSI/TIA/EIA-455-171-A-2001 standards. **Practical Advantages** The vibrant green jacket aids visual identification in complex cable environments. Available in custom lengths for specific installation requirements. Ships with 90-day limited warranty protection. Free standard shipping on orders exceeding $99, with fulfillment from strategically located warehouses in California, Texas, and South Carolina. **Ideal Applications** Perfect for fiber-to-the-building (FTTB), campus backbone networks, telecommunications infrastructure, and high-speed data center interconnects. Suitable for any application requiring reliable singlemode fiber connectivity with minimal signal loss and maximum uptime.