The JBX42520 8-meter ST/APC to ST/APC duplex singlemode fiber patch cable represents premium optical connectivity for telecommunications infrastructure, data centers, and high-speed network applications. Engineered to exacting specifications, this cable delivers the performance, reliability, and compliance requirements demanded by modern enterprise networks. **Superior Optical Performance** Features a 9/125 singlemode fiber core with G.657.A1 glass fiber specification, optimized for both 1310nm and 1550nm wavelengths. Tested attenuation meets ANSI/TIA/EIA-455-171-A standards with performance at 1310nm: 0.25dB/km and 1550nm: 0.35dB/km. Low insertion loss (≤0.35dB typical 0.15dB) and high return loss (≥20dB) ensure signal integrity for critical applications. **Robust Construction & Durability** The yellow OFNR (Optical Fiber Nonconductive Riser Rated) jacket provides fire resistance and ease of identification in complex network installations. ST/APC connectors feature precise 8-degree angled polished surfaces, minimizing reflectance and signal degradation. Compact 1.8mm outside diameter simplifies cable management in crowded equipment racks. **Regulatory Compliance & Standards** Fully TAA (Trade Agreements Act) compliant for government procurement. RoHS and ELV directive certified, meeting EU directive 2002/95/EC environmental standards. Manufactured with quality controls across multiple production facilities in Taiwan, US, and China. **Flexibility & Convenience** While this model provides 8 meters of connectivity, custom lengths are available to match your exact deployment requirements. The Type A to B crossover polarity is the standard configuration for duplex patch cord applications. 90-day limited warranty provides confidence in your investment. **Ideal Applications** Perfect for data center fiber interconnects, telecom backbone networks, research facilities, and any environment requiring singlemode optical connectivity with government compliance. Ships from multiple US locations (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on orders over $99. Choose the JBX42520 for professional-grade optical performance backed by rigorous testing standards and comprehensive compliance certifications.