The JBX42138 35-meter SC/APC to SC/UPC duplex single mode fiber patch cable represents a premium solution for telecommunications, data center, and network infrastructure applications. This cable combines professional-grade performance with practical features designed for modern networking environments. **Technical Performance:** Built with 9/125 single mode fiber core, this cable delivers exceptional signal integrity with measured attenuation of 0.25 dB/km at 1310 nm or 0.35 dB/km at 1550 nm. The insertion loss specification of ≤0.35dB (typical 0.15dB) and return loss of ≥20dB ensures reliable signal transmission with minimal reflections. All attenuation measurements comply with ANSI/TIA/EIA-455-171-A-2001 standards, guaranteeing consistent performance across diverse applications. **Construction & Durability:** The cable utilizes G.657.A1 glass fiber technology, offering improved bending characteristics while maintaining single mode performance. The 1.8mm outer diameter jacketing is OFNR (Optical Fiber Non-Conductive Riser) rated, suitable for in-wall installations in commercial buildings. The robust plastic accessory construction withstands demanding installation environments while maintaining signal quality. **Standards Compliance:** Fully TAA (Trade Agreements Act) compliant, this cable meets government procurement requirements. RoHS and ELV directive compliance (EU 2002/95/EC) ensures environmental responsibility and safe material composition. The cable is manufactured to the highest quality standards, backed by a 90-day limited warranty. **Practical Features:** The distinctive yellow jacket provides superior visibility and identification in high-density cable environments, reducing installation time and potential errors. The Type A to B crossover polarity (most common for duplex patch cords) ensures immediate compatibility with standard network configurations. Custom length availability accommodates unique installation requirements. **Application Examples:** Ideal for telecommunications facilities, data centers, enterprise networks, and long-distance signal transmission. The 35-meter length suits backbone connectivity, inter-rack connections, and extended run installations where standard patch cables fall short. **Ordering Information:** Ships from multiple US locations (Danville CA, Fort Worth TX, and Beaufort SC) ensuring rapid delivery. Free standard shipping on orders exceeding $99. Case packaging contains 10 units per box (10x10x10), suitable for bulk deployments or inventory stocking.