The JBX43412 55-meter SC/APC to ST/APC simplex fiber patch cable represents a professional-grade solution for mission-critical fiber optic applications. This cable is specifically engineered to meet the demanding requirements of telecommunications, data centers, and enterprise network environments where signal quality and reliability are paramount. **Superior Fiber Technology**: Utilizing G.657.A1 grade 9/125 singlemode fiber, this cable provides exceptional performance characteristics. The singlemode design ensures minimal modal dispersion, enabling high-speed data transmission over extended distances. Attenuation specifications of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm demonstrate compliance with industry standards and ensure efficient signal propagation. **Advanced Connector Technology**: The SC/APC (Angled Physical Contact) and ST/APC connectors provide superior performance compared to standard connectors. APC connectors minimize back-reflection through their angled design, resulting in return loss exceeding 20dB. This characteristic is critical for applications requiring low signal loss and minimal interference, particularly in DWDM systems and precision measurement equipment. **Construction and Durability**: The cable features a robust 1.8mm outer diameter with OFNR (Optical Fiber, Non-conductive, Riser) rated yellow jacket, offering excellent flame resistance and suitability for in-building vertical runs. The yellow identification color facilitates easy cable management and organization in complex installations. **Regulatory Compliance**: TAA compliance ensures procurement eligibility for U.S. government contracts, while RoHS certification (EU Directive 2002/95/EC) and ELV compliance demonstrate commitment to environmental standards and hazardous substance restrictions. **Flexibility and Customization**: Available in custom lengths beyond the standard 55m configuration, this cable accommodates varied installation requirements and future scalability. Quick-disconnect capability and simplex operation make it ideal for applications requiring single-direction fiber transmission. **Applications**: Suitable for telecommunications backbone infrastructure, data center interconnects, campus area networks (CANs), metropolitan area networks (MANs), fiber-to-the-premises (FTTP) installations, and equipment connections requiring singlemode fiber transmission. The insertion loss specification of ≤0.35dB ensures minimal signal degradation even at maximum cable length. **Quality Assurance**: Attenuation testing complies with ANSI/TIA/EIA-455-171-A-2001 standards, ensuring verified performance. The 90-day limited warranty provides customer protection and reflects manufacturing quality confidence. **Free Shipping**: Qualified orders over $99 receive free standard shipping from multiple distribution centers (Danville CA, Fort Worth TX, or Beaufort SC), ensuring rapid delivery and reduced procurement costs. This cable represents an excellent value for IT professionals, systems integrators, and network administrators requiring reliable, standards-compliant fiber patch cables.