The JBX85165 15-meter SC/SC duplex singlemode fiber patch cable represents an essential component for modern optical networking infrastructure. This professional-grade cable combines reliability, performance, and ease of installation to meet the demanding requirements of telecommunications and data center environments. **Technical Specifications:** This duplex cable features a 9/125 micrometer singlemode fiber core, the industry standard for long-distance, high-bandwidth applications. The SC/UPC connectors are configured in Type A to B crossover polarity, the most common duplex patch cord configuration, ensuring compatibility with standard network architectures. With attenuation measurements of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm, this cable delivers excellent signal integrity across both primary telecommunications wavelengths. **Construction and Durability:** The cable features a compact 1.8mm outside diameter wrapped in OFNR (Optical Fiber Nonconductive Riser) rated yellow jacketing. The yellow color aids in rapid visual identification within complex network installations, reducing configuration errors and troubleshooting time. All components are RoHS/ELV compliant, meeting strict environmental and safety standards. **Applications:** Ideal for telecommunications facilities, data centers, server farms, and enterprise backbone networks. The singlemode design supports both short and long-distance signal transmission with minimal loss, making it suitable for inter-building connections and equipment patch-panel linking. **Compliance and Quality:** Tested and certified to ANSI/TIA/EIA-455-171-A-2001 standards, this cable ensures consistent performance. The 90-day limited warranty provides peace of mind, while domestic warehouses in California, Texas, and South Carolina enable rapid shipping with free standard delivery on orders exceeding $99. **Custom Solutions:** Custom lengths are available for specialized installation requirements, allowing you to order the exact cable length needed while maintaining premium performance standards. Compatible with standard SC optical connectors across major networking equipment manufacturers.