The JBX88193 ST/ST Singlemode Fiber Patch Cable represents professional-grade connectivity engineered for demanding network environments. This 2-meter duplex cable combines advanced fiber optics technology with government-compliant manufacturing standards, making it an ideal choice for enterprises, data centers, and telecom operators. **Core Technical Excellence:** Featuring a 9/125 micron singlemode core, this cable supports long-distance, high-bandwidth signal transmission with minimal attenuation. Test results demonstrate exceptional performance: insertion loss of ≤0.35dB (0.15dB typical) and return loss exceeding 20dB, ensuring pristine signal integrity across your network. The cable operates efficiently at both 1310nm and 1550nm wavelengths with attenuation rates of 0.25dB/km and 0.35dB/km respectively. **Quality Construction:** Built with G.657.A1 glass fiber and terminated with precision ST/UPC connectors, the cable features an ultra-thin 1.8mm outer diameter for maximum installation flexibility. The OFNR riser-rated yellow jacket provides excellent fire resistance and plenum compliance while offering superior durability and UV protection. **Standards & Compliance:** Fully RoHS/ELV certified and TAA-compliant, this cable meets stringent government procurement standards. Manufacturing adheres to ANSI/TIA/EIA-455-171-A-2001 testing protocols, ensuring consistent quality across all units. **Practical Advantages:** The distinctive yellow identification enables quick cable tracing and management in complex installations. Type A to B crossover polarity provides the most common duplex configuration. Available in custom lengths for specialized applications. Ships from multiple U.S. locations for rapid deployment. Backed by a 90-day limited warranty and includes free standard shipping on orders exceeding $99. **Applications:** Ideal for enterprise data centers, telecommunications infrastructure, financial institutions, healthcare networks, and any mission-critical environment requiring reliable singlemode fiber connectivity with proven performance and regulatory compliance.