The JBX88299 40-meter ST/ST duplex singlemode fiber patch cable represents professional-grade connectivity solutions for organizations requiring dependable long-distance optical signal transmission. Built with precision engineering, this cable meets TAA (Trade Agreements Act) compliance requirements, making it an excellent choice for government and regulated environment deployments. Technical Excellence: This fiber optic patch cable utilizes 9/125 singlemode core construction with G.657.A1 glass specification, optimized for minimal signal attenuation across critical wavelengths. With insertion loss performance of ≤0.35dB (0.15dB typical) and return loss exceeding 20dB, the cable maintains signal integrity over 40-meter runs. Attenuation specifications of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm ensure optimal performance for both traditional and modern optical networking frequencies. Robust Construction: The 1.8mm outside diameter green jacket features OFNR (Optical Fiber Non-conductive Riser) rating, suitable for vertical cable runs in buildings while maintaining fire safety standards. ST/UPC connectors with Type A to B crossover polarity provide standard duplex communication configuration. All components comply with RoHS and EU directive 2002/95/EC standards. Application Versatility: Ideal for data center interconnections, telecommunications infrastructure, enterprise backbone networks, and long-distance LAN connectivity. The duplex construction simultaneously supports bidirectional communication, reducing cable management complexity. Value-Added Features: - Custom length availability for specialized installations - Free standard shipping on orders exceeding $99 - 90-day limited warranty - Multiple US-based shipping locations - Manufactured with global quality standards (Taiwan, US, China) Whether upgrading existing infrastructure or deploying new networks, the JBX88299 delivers proven reliability and compliance for mission-critical applications.