The JBX93066 4-meter LC/ST duplex singlemode fiber patch cable represents a high-performance solution for modern telecommunications and data center environments. This professional-grade cable is specifically designed to connect LC and ST fiber connectors while maintaining signal integrity across long-distance transmission networks. **Technical Excellence:** Built with 9/125 singlemode fiber core, this duplex patch cable supports both 1310nm and 1550nm wavelengths with exceptional performance metrics. The measured attenuation of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm ensures minimal signal loss over extended runs. Insertion loss testing confirms ≤0.35dB performance (typical 0.15dB), while return loss ≥20dB prevents signal reflection issues. All measurements conform to ANSI/TIA/EIA-455-171-A-2001 standards. **Durability and Compliance:** The cable features an 1.8mm outside diameter with a riser-rated (OFNR) orange jacket that provides flame resistance and easy visual identification. TAA compliance ensures government procurement eligibility, while RoHS/ELV certification demonstrates environmental responsibility. The G.657.A1 glass fiber specification offers excellent bend radius performance. **Application Versatility:** Ideal for campus networks, data centers, telecommunications hubs, and fiber-to-the-desktop installations. The LC/ST duplex configuration with Type A to B crossover polarity suits both backbone and access network deployments. Orange coloring aids in cable management and network documentation. **Convenience and Support:** Offered with free standard shipping on orders over $99, this cable ships from multiple US locations (Danville, CA; Fort Worth, TX; Beaufort, SC) for rapid delivery. Custom lengths are available to meet specific installation requirements. The included 90-day limited warranty provides peace of mind for your network investment. Whether upgrading legacy fiber networks or installing new infrastructure, the JBX93066 delivers the performance, compliance, and reliability professional installers demand.