The JBX43486 ST/APC to ST/UPC simplex fiber patch cable represents a reliable solution for modern telecommunications and data center environments. This 4-meter cable combines exceptional performance specifications with compliance certifications, making it suitable for mission-critical applications. **Specifications and Performance:** Features a 9/125 singlemode fiber core with G.657.A1 glass composition, offering superior bend performance and attenuation characteristics. The cable demonstrates insertion loss of ≤0.35dB (0.15dB typical) and return loss exceeding 20dB, ensuring minimal signal degradation across 1310nm and 1550nm wavelengths. Attenuation rates of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm provide excellent long-distance transmission capabilities. **Connector Technology:** The ST/APC (ST Angled Physical Contact) to ST/UPC (ST Ultra Physical Contact) configuration enables compatibility across diverse network architectures. The straight-through polarity design simplifies installation and reduces compatibility concerns in mixed-environment deployments. **Build Quality and Compliance:** Constructed with OFNR (Optical Fiber Non-conductive Riser) rating, the yellow jacket provides both safety compliance and color-coded identification for organized cable management. The 1.8mm outer diameter facilitates easy routing through existing conduit systems. RoHS and ELV compliance certifications ensure environmental and regulatory adherence for enterprise and government applications. **TAA Compliance:** This product meets Trade Agreements Act requirements, making it suitable for U.S. government procurement and agencies with compliance mandates. **Applications:** Ideal for telecommunications networks, data center interconnects, campus area networks, and fiber-to-the-building installations. The simplex configuration suits applications requiring unidirectional signal transmission. **Flexibility:** Custom length availability accommodates non-standard installation requirements, ensuring you obtain precisely the cable length needed without excess material waste. **Warranty and Support:** Backed by a 90-day limited warranty and shipped from multiple U.S. warehouses with free standard shipping on orders exceeding $99, ensuring rapid deployment and cost-effective procurement.