The JBX43371 SC/APC to ST/UPC simplex singlemode fiber patch cable represents a professional solution for demanding fiber optic network applications. Measuring 9 meters in length, this cable is engineered to connect equipment requiring single-strand (simplex) fiber connectivity between different connector types—specifically SC/APC connectors on one end and ST/UPC connectors on the other. **Key Technical Specifications:** This cable features a 9/125 singlemode core with G.657.A1 glass fiber composition, making it suitable for both short and longer-distance signal transmission. The cable has been attenuation tested in accordance with ANSI/TIA/EIA-455-171-A-2001 standards, demonstrating insertion loss of ≤0.35dB (0.15dB typical) and return loss ≥20dB. Performance specifications include attenuation of 0.25 dB/km at 1310nm or 0.35 dB/km at 1550nm, ensuring excellent signal quality. **Construction & Compliance:** The cable features a 1.8mm outer diameter with plastic accessory jacketing rated for OFNR (Optical Fiber Non-conductive Riser) applications. It is fully TAA (Trade Agreements Act) compliant and meets RoHS/ELV directives, making it suitable for government and enterprise procurement. Manufacturing occurs across Taiwan, US, and China facilities, with packaging of 10x10x10 units. **Ideal Applications:** Perfect for telecommunications infrastructure, data center patch panels, research laboratories, and professional network installations where simplex single-mode connectivity between different connector types is required. The straight-through polarity design ensures straightforward installation. **Warranty & Support:** Backed by a 90-day limited warranty and available in custom lengths upon request. Free standard shipping applies to orders exceeding $99, with fulfillment from Danville, CA, Fort Worth, TX, or Beaufort, SC locations.