The JBX42430 FC/APC to FC/UPC Duplex Singlemode Fiber Patch Cable represents professional-grade optical connectivity designed for demanding network environments. This 8-meter cable delivers reliable signal transmission with industry-leading performance specifications suitable for telecommunications, data centers, and enterprise networking applications. **Technical Specifications:** This duplex patch cable features precision-engineered 9/125 singlemode fiber core construction using G.657.A1 glass fiber, a bend-optimized specification ideal for installations with spatial constraints. The cable achieves exceptional low-loss characteristics with insertion loss ratings of ≤0.35dB at both 1310nm and 1550nm wavelengths, ensuring minimal signal degradation across critical transmission windows. Return loss performance of ≥20dB provides excellent reflection suppression for optimal signal quality. **Design & Build Quality:** The bright yellow OFNR (Optical Fiber Non-conductive Riser) rated jacket provides superior protection and easy visual identification in cable management systems. At just 1.8mm in outside diameter, this cable maximizes space efficiency without compromising durability. Type A to B crossover polarity configuration ensures proper signal routing in duplex applications—the standard for most network environments. **Compliance & Certification:** Full TAA compliance meets federal procurement requirements, while RoHS/ELV certification ensures environmental responsibility. Performance testing conducted in accordance with ANSI/TIA/EIA-455-171-A-2001 standards validates attenuation specifications at industry-standard wavelengths. **Applications:** Ideal for fiber-to-the-desktop installations, equipment interconnects, telecommunications networks, and high-speed data transmission where signal integrity is paramount. Custom lengths available for specialized installations. **Shipping & Support:** Ships from U.S. locations (Danville CA, Fort Worth TX, or Beaufort SC) with free standard shipping on orders exceeding $99. Backed by 90-day limited warranty for customer confidence.