The JBX88377 ST/ST Singlemode Fiber Patch Cable represents professional-grade optical connectivity engineered for demanding telecommunications and data center applications. This 5-meter duplex cable combines precision engineering with compliance standards that matter to enterprise buyers, government agencies, and technology integrators. **Technical Excellence:** The cable features 9/125 singlemode fiber construction, the industry standard for long-distance, high-bandwidth communications. Its G.657.A1 glass fiber core delivers superior performance with minimal attenuation—0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm—ensuring signal integrity over extended distances. Insertion loss of ≤0.35dB typical and return loss ≥20dB exceed industry expectations, providing reliable transmission for demanding applications. **Smart Design Features:** The distinctive purple jacket facilitates quick identification in complex cable environments, reducing installation time and troubleshooting errors. ST/UPC connectors with Type A to B crossover configuration represent the standard for duplex patch cords, ensuring compatibility with existing infrastructure. The 1.8mm outside diameter provides flexibility for routing through tight conduit spaces while maintaining durability. **Compliance & Safety:** TAA compliance opens procurement opportunities with government agencies and organizations with Buy American requirements. RoHS/ELV compliance meets strict environmental regulations. OFNR riser-rated jacketing permits safe installation in building plenums and other restricted spaces, critical for modern facility deployments. **Versatile Applications:** Perfect for connecting fiber switches, routers, network interface cards, and optical transceivers in data centers, telecommunications facilities, and enterprise networks. Supports both legacy CWDM systems and modern high-speed protocols requiring low-loss performance. **Hassle-Free Ownership:** Includes 90-day limited warranty. Ships from multiple US locations (California, Texas, South Carolina) with free standard shipping on orders over $99, ensuring quick delivery. Custom lengths available for specialized installations. Manufactured in Taiwan, US, or China with consistent quality standards across all production facilities. Invest in fiber connectivity that delivers proven performance, regulatory compliance, and reliable signal transmission for mission-critical applications.