The JBX89169 40-meter SC/SC duplex singlemode fiber patch cable represents enterprise-grade connectivity for critical network infrastructure. Engineered with precision optical specifications, this cable accommodates modern data center demands where signal quality and reliability are paramount. **Technical Excellence**: Built with G.657.A1 singlemode fiber featuring a 9/125 micron core, this cable minimizes signal degradation over extended distances. Tested to ANSI/TIA/EIA-455-171-A standards, it delivers consistent performance with attenuation rates of 0.25 dB/km at 1310nm or 0.35 dB/km at 1550nm wavelengths. The impressive insertion loss specification of ≤0.35dB (typically 0.15dB) ensures minimal power loss, while return loss ≥20dB prevents signal reflection issues. **Compliance & Safety**: TAA compliance makes this cable ideal for government and regulated procurement environments. Full RoHS/ELV certification ensures environmental responsibility, aligning with EU directive 2002/95/EC. The OFNR-rated jacket provides superior fire safety ratings required in riser installations. **Practical Design**: The distinctive purple jacket facilitates quick cable identification in dense network environments, reducing installation time and troubleshooting complexity. SC/UPC connectors provide Type A to B crossover polarity—the industry standard for duplex patch cords. The 1.8mm outside diameter balances durability with space efficiency in cable management systems. **Applications**: Perfect for telecommunications backbones, data center interconnects, campus networks, and long-distance signal transmission requiring single-mode precision. Available in custom lengths for specialized installations. **Reliability**: Backed by a 90-day limited warranty and shipped from multiple US locations for expedited delivery. Free standard shipping on orders exceeding $99. This TAA-compliant solution meets the stringent requirements of telecom professionals, network engineers, and IT infrastructure specialists.