The JBX42367 5-meter SC/APC to ST/UPC duplex singlemode fiber patch cable represents a superior choice for telecommunications professionals and network administrators seeking reliable, high-performance fiber connectivity solutions. **Technical Excellence** This duplex patch cable features 9/125 singlemode fiber construction with premium G.657.A1 glass fiber specifications. The SC/APC connector on one end and ST/UPC connector on the other provide flexibility for mixed infrastructure environments. With insertion loss specifications of ≤0.35dB at 0.15dB typical and return loss ≥20dB, this cable exceeds industry standards for signal integrity. Attenuation ratings of 0.25 dB/km at 1310 nm and 0.35 dB/km at 1550 nm ensure excellent long-distance signal transmission. **Professional-Grade Construction** The cable features a robust 1.8mm outside diameter with riser-rated (OFNR) jacketing, meeting safety requirements for building installations. The yellow color coding aids in network organization and troubleshooting, reducing installation errors and maintenance time. Type A to B crossover polarity configuration is optimized for typical duplex patch cord applications. **Compliance & Reliability** Fully TAA compliant and RoHS/ELV certified per EU directive 2002/95/EC, this cable meets government procurement standards and environmental regulations. Every cable is attenuation-tested to ANSI/TIA/EIA-455-171-A-2001 standards, ensuring quality assurance. **Applications** Ideal for data centers, telecommunications facilities, enterprise networks, and fiber-to-the-desk (FTTD) installations. The duplex configuration accommodates bidirectional communication requirements common in modern networking environments. **Flexible Options** While this listing features the standard 5-meter length, custom lengths are available to meet specific installation requirements. Free standard shipping applies to orders exceeding $99, with expedited shipping options available.