The JBX88390 45-meter ST/ST duplex singlemode fiber patch cable represents premium connectivity for enterprise networks, data centers, and telecommunications infrastructure. This professional-grade optical cable is engineered to deliver consistent, high-performance signal transmission across extended distances. **Technical Excellence**: Built with 9/125 singlemode fiber core and G.657.A1 glass specifications, this cable exceeds industry standards for attenuation performance (0.25 dB/km at 1310nm or 0.35 dB/km at 1550nm). The impressive insertion loss rating of ≤0.35dB (0.15dB typical) and return loss of ≥20dB ensures minimal signal degradation and optimal network reliability. **Compliance & Standards**: TAA compliant construction makes this cable ideal for government and procurement-sensitive projects. Full RoHS/ELV certification ensures environmental responsibility. Testing follows ANSI/TIA/EIA-455-171-A-2001 standards, guaranteeing quality assurance and predictable performance. **Practical Design**: The durable 1.8mm outside diameter with OFNR riser-rated jacketing enables easy routing through cable trays, conduits, and tight installation spaces. Type A to B crossover polarity configuration provides standard duplex patch cord functionality. The distinctive purple jacket aids in cable identification and organization within complex network environments. **Versatile Applications**: Perfect for connecting fiber optic equipment, switches, routers, and network termination points. The 45-meter length accommodates medium-distance runs without requiring intermediate splicing. Ideal for campus networks, data center interconnects, and telecommunications equipment. **Value & Convenience**: Ships from multiple U.S. locations (Danville, CA; Fort Worth, TX; Beaufort, SC) for rapid delivery. Qualify for free standard shipping on orders exceeding $99. Custom length options available for specialized installations. Backed by 90-day limited warranty for peace of mind. **Custom Options**: Available in custom lengths to match your specific installation requirements, providing flexibility for unique network designs and configurations.